./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:07:59,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:07:59,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:07:59,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:07:59,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:07:59,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:07:59,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:07:59,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:07:59,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:07:59,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:07:59,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:07:59,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:07:59,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:07:59,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:07:59,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:07:59,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:07:59,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:07:59,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:07:59,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:07:59,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:07:59,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:07:59,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:07:59,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:07:59,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:07:59,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:07:59,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:07:59,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:07:59,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:07:59,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:07:59,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:07:59,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:07:59,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:07:59,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:07:59,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:07:59,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:07:59,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:07:59,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:07:59,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:07:59,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:07:59,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:07:59,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:07:59,459 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 21:07:59,483 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:07:59,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:07:59,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:07:59,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:07:59,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:07:59,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:07:59,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:07:59,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:07:59,487 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:07:59,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:07:59,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:07:59,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:07:59,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:07:59,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:07:59,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:07:59,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:07:59,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:07:59,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:07:59,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:07:59,490 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:07:59,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:07:59,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:07:59,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:07:59,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:07:59,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:07:59,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:07:59,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:07:59,493 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:07:59,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:07:59,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:07:59,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c [2022-11-18 21:07:59,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:07:59,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:07:59,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:07:59,768 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:07:59,769 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:07:59,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-18 21:07:59,862 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/data/e9fa75adc/30d18b57bfd64b0cb139fc2a359dbb99/FLAG98fe2f14a [2022-11-18 21:08:00,735 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:08:00,736 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-18 21:08:00,781 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/data/e9fa75adc/30d18b57bfd64b0cb139fc2a359dbb99/FLAG98fe2f14a [2022-11-18 21:08:01,248 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/data/e9fa75adc/30d18b57bfd64b0cb139fc2a359dbb99 [2022-11-18 21:08:01,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:08:01,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:08:01,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:08:01,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:08:01,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:08:01,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:08:01" (1/1) ... [2022-11-18 21:08:01,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52457e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:01, skipping insertion in model container [2022-11-18 21:08:01,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:08:01" (1/1) ... [2022-11-18 21:08:01,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:08:01,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:08:02,375 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2022-11-18 21:08:02,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:08:02,959 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:08:03,164 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2022-11-18 21:08:03,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:08:03,437 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:08:03,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03 WrapperNode [2022-11-18 21:08:03,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:08:03,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:08:03,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:08:03,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:08:03,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (1/1) ... [2022-11-18 21:08:03,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (1/1) ... [2022-11-18 21:08:03,687 INFO L138 Inliner]: procedures = 183, calls = 1615, calls flagged for inlining = 84, calls inlined = 65, statements flattened = 2922 [2022-11-18 21:08:03,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:08:03,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:08:03,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:08:03,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:08:03,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (1/1) ... [2022-11-18 21:08:03,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (1/1) ... [2022-11-18 21:08:03,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (1/1) ... [2022-11-18 21:08:03,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (1/1) ... [2022-11-18 21:08:03,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (1/1) ... [2022-11-18 21:08:03,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (1/1) ... [2022-11-18 21:08:03,906 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (1/1) ... [2022-11-18 21:08:03,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (1/1) ... [2022-11-18 21:08:03,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:08:03,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:08:03,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:08:03,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:08:03,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (1/1) ... [2022-11-18 21:08:03,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:08:03,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:08:03,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:08:04,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:08:04,044 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 21:08:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 21:08:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2022-11-18 21:08:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2022-11-18 21:08:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 21:08:04,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_5 [2022-11-18 21:08:04,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_5 [2022-11-18 21:08:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-11-18 21:08:04,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-11-18 21:08:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 21:08:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-18 21:08:04,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-18 21:08:04,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 21:08:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 21:08:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 21:08:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:08:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-18 21:08:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-18 21:08:04,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-18 21:08:04,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-18 21:08:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 21:08:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 21:08:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-18 21:08:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-18 21:08:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2022-11-18 21:08:04,048 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2022-11-18 21:08:04,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 21:08:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 21:08:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-18 21:08:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-18 21:08:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2022-11-18 21:08:04,049 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2022-11-18 21:08:04,049 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 21:08:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 21:08:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-18 21:08:04,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-18 21:08:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:08:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_skb [2022-11-18 21:08:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_skb [2022-11-18 21:08:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 21:08:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 21:08:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-18 21:08:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-18 21:08:04,052 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2022-11-18 21:08:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2022-11-18 21:08:04,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 21:08:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 21:08:04,052 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_rx_cb [2022-11-18 21:08:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_rx_cb [2022-11-18 21:08:04,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 21:08:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 21:08:04,053 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 21:08:04,053 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 21:08:04,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 21:08:04,054 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-18 21:08:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-18 21:08:04,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-18 21:08:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-18 21:08:04,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2022-11-18 21:08:04,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2022-11-18 21:08:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 21:08:04,057 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 21:08:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:08:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2022-11-18 21:08:04,057 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2022-11-18 21:08:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2022-11-18 21:08:04,058 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2022-11-18 21:08:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-18 21:08:04,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-18 21:08:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 21:08:04,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 21:08:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:08:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 21:08:04,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2022-11-18 21:08:04,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2022-11-18 21:08:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-18 21:08:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 21:08:04,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 21:08:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2022-11-18 21:08:04,060 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2022-11-18 21:08:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 21:08:04,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 21:08:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 21:08:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2022-11-18 21:08:04,061 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2022-11-18 21:08:04,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-18 21:08:04,061 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-18 21:08:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2022-11-18 21:08:04,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2022-11-18 21:08:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:08:04,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 21:08:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-18 21:08:04,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-18 21:08:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2022-11-18 21:08:04,063 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2022-11-18 21:08:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-11-18 21:08:04,064 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-11-18 21:08:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2022-11-18 21:08:04,065 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2022-11-18 21:08:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-18 21:08:04,066 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-18 21:08:04,066 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-18 21:08:04,066 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-18 21:08:04,066 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 21:08:04,066 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 21:08:04,067 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2022-11-18 21:08:04,067 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2022-11-18 21:08:04,067 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-18 21:08:04,067 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-18 21:08:04,067 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-18 21:08:04,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-18 21:08:04,068 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2022-11-18 21:08:04,068 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2022-11-18 21:08:04,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-18 21:08:04,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-18 21:08:04,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:08:04,068 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-18 21:08:04,069 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-18 21:08:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-18 21:08:04,072 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-18 21:08:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 21:08:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 21:08:04,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 21:08:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-18 21:08:04,075 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-18 21:08:04,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:08:04,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:08:04,718 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:08:04,728 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:08:05,173 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 21:08:06,236 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-18 21:08:14,699 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:08:14,715 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:08:14,715 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:08:14,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:08:14 BoogieIcfgContainer [2022-11-18 21:08:14,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:08:14,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:08:14,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:08:14,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:08:14,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:08:01" (1/3) ... [2022-11-18 21:08:14,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d76b456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:08:14, skipping insertion in model container [2022-11-18 21:08:14,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:03" (2/3) ... [2022-11-18 21:08:14,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d76b456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:08:14, skipping insertion in model container [2022-11-18 21:08:14,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:08:14" (3/3) ... [2022-11-18 21:08:14,728 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-18 21:08:14,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:08:14,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:08:14,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:08:14,858 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@15b24c60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:08:14,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:08:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand has 834 states, 589 states have (on average 1.3497453310696095) internal successors, (795), 615 states have internal predecessors, (795), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) [2022-11-18 21:08:14,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 21:08:14,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:08:14,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:08:14,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:08:14,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:08:14,887 INFO L85 PathProgramCache]: Analyzing trace with hash -753531349, now seen corresponding path program 1 times [2022-11-18 21:08:14,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:08:14,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110494228] [2022-11-18 21:08:14,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:08:14,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:08:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:08:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:15,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:08:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:15,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:08:15,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:08:15,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110494228] [2022-11-18 21:08:15,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110494228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:08:15,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:08:15,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:08:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962608162] [2022-11-18 21:08:15,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:08:15,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:08:15,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:08:15,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:08:15,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:08:15,864 INFO L87 Difference]: Start difference. First operand has 834 states, 589 states have (on average 1.3497453310696095) internal successors, (795), 615 states have internal predecessors, (795), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 21:08:17,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:08:19,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:08:21,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:08:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:08:26,839 INFO L93 Difference]: Finished difference Result 2788 states and 4105 transitions. [2022-11-18 21:08:26,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:08:26,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-18 21:08:26,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:08:26,870 INFO L225 Difference]: With dead ends: 2788 [2022-11-18 21:08:26,870 INFO L226 Difference]: Without dead ends: 1937 [2022-11-18 21:08:26,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:08:26,888 INFO L413 NwaCegarLoop]: 1053 mSDtfsCounter, 2280 mSDsluCounter, 1999 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 1208 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 2593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1208 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-18 21:08:26,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 3052 Invalid, 2593 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1208 Valid, 1382 Invalid, 3 Unknown, 0 Unchecked, 10.5s Time] [2022-11-18 21:08:26,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2022-11-18 21:08:27,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1608. [2022-11-18 21:08:27,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1142 states have (on average 1.3336252189141857) internal successors, (1523), 1176 states have internal predecessors, (1523), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2022-11-18 21:08:27,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2242 transitions. [2022-11-18 21:08:27,257 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2242 transitions. Word has length 28 [2022-11-18 21:08:27,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:08:27,258 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2242 transitions. [2022-11-18 21:08:27,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 21:08:27,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2242 transitions. [2022-11-18 21:08:27,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 21:08:27,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:08:27,268 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:08:27,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:08:27,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:08:27,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:08:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash -829331153, now seen corresponding path program 1 times [2022-11-18 21:08:27,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:08:27,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578605627] [2022-11-18 21:08:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:08:27,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:08:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:27,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:08:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:08:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:27,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:08:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:27,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 21:08:27,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:08:27,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578605627] [2022-11-18 21:08:27,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578605627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:08:27,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:08:27,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:08:27,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817301171] [2022-11-18 21:08:27,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:08:27,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:08:27,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:08:27,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:08:27,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:08:27,811 INFO L87 Difference]: Start difference. First operand 1608 states and 2242 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:08:29,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:08:31,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:08:34,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:08:34,388 INFO L93 Difference]: Finished difference Result 1963 states and 2750 transitions. [2022-11-18 21:08:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:08:34,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-18 21:08:34,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:08:34,402 INFO L225 Difference]: With dead ends: 1963 [2022-11-18 21:08:34,402 INFO L226 Difference]: Without dead ends: 1950 [2022-11-18 21:08:34,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:08:34,405 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 1703 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 684 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:08:34,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 2011 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [684 Valid, 726 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-11-18 21:08:34,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2022-11-18 21:08:34,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1608. [2022-11-18 21:08:34,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1608 states, 1142 states have (on average 1.3327495621716288) internal successors, (1522), 1176 states have internal predecessors, (1522), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2022-11-18 21:08:34,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1608 states to 1608 states and 2241 transitions. [2022-11-18 21:08:34,512 INFO L78 Accepts]: Start accepts. Automaton has 1608 states and 2241 transitions. Word has length 38 [2022-11-18 21:08:34,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:08:34,513 INFO L495 AbstractCegarLoop]: Abstraction has 1608 states and 2241 transitions. [2022-11-18 21:08:34,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:08:34,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1608 states and 2241 transitions. [2022-11-18 21:08:34,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 21:08:34,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:08:34,515 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:08:34,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:08:34,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:08:34,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:08:34,516 INFO L85 PathProgramCache]: Analyzing trace with hash -772072851, now seen corresponding path program 1 times [2022-11-18 21:08:34,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:08:34,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478226444] [2022-11-18 21:08:34,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:08:34,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:08:34,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:35,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:08:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:35,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:08:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:35,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:08:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:35,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 21:08:35,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:08:35,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478226444] [2022-11-18 21:08:35,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478226444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:08:35,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:08:35,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:08:35,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805896156] [2022-11-18 21:08:35,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:08:35,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:08:35,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:08:35,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:08:35,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:08:35,463 INFO L87 Difference]: Start difference. First operand 1608 states and 2241 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:08:37,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:08:39,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:08:44,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:08:44,464 INFO L93 Difference]: Finished difference Result 5440 states and 7766 transitions. [2022-11-18 21:08:44,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:08:44,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-18 21:08:44,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:08:44,491 INFO L225 Difference]: With dead ends: 5440 [2022-11-18 21:08:44,491 INFO L226 Difference]: Without dead ends: 3850 [2022-11-18 21:08:44,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:08:44,505 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 2108 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 1123 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 2581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1123 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-18 21:08:44,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2218 Valid, 3279 Invalid, 2581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1123 Valid, 1456 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2022-11-18 21:08:44,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3850 states. [2022-11-18 21:08:44,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3850 to 3187. [2022-11-18 21:08:44,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3187 states, 2266 states have (on average 1.3318623124448368) internal successors, (3018), 2330 states have internal predecessors, (3018), 716 states have call successors, (716), 205 states have call predecessors, (716), 204 states have return successors, (745), 699 states have call predecessors, (745), 711 states have call successors, (745) [2022-11-18 21:08:44,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3187 states to 3187 states and 4479 transitions. [2022-11-18 21:08:44,748 INFO L78 Accepts]: Start accepts. Automaton has 3187 states and 4479 transitions. Word has length 38 [2022-11-18 21:08:44,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:08:44,748 INFO L495 AbstractCegarLoop]: Abstraction has 3187 states and 4479 transitions. [2022-11-18 21:08:44,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:08:44,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3187 states and 4479 transitions. [2022-11-18 21:08:44,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-18 21:08:44,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:08:44,753 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:08:44,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:08:44,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:08:44,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:08:44,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1835132963, now seen corresponding path program 1 times [2022-11-18 21:08:44,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:08:44,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260701900] [2022-11-18 21:08:44,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:08:44,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:08:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:45,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:08:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:45,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:08:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:45,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:08:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 21:08:45,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:08:45,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260701900] [2022-11-18 21:08:45,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260701900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:08:45,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:08:45,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:08:45,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407644377] [2022-11-18 21:08:45,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:08:45,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:08:45,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:08:45,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:08:45,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:08:45,542 INFO L87 Difference]: Start difference. First operand 3187 states and 4479 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:08:47,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:08:49,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:08:54,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:08:54,508 INFO L93 Difference]: Finished difference Result 10817 states and 15792 transitions. [2022-11-18 21:08:54,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:08:54,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2022-11-18 21:08:54,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:08:54,564 INFO L225 Difference]: With dead ends: 10817 [2022-11-18 21:08:54,565 INFO L226 Difference]: Without dead ends: 7648 [2022-11-18 21:08:54,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:08:54,585 INFO L413 NwaCegarLoop]: 1128 mSDtfsCounter, 2236 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 1202 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 2626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1202 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-18 21:08:54,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2339 Valid, 3222 Invalid, 2626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1202 Valid, 1422 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2022-11-18 21:08:54,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7648 states. [2022-11-18 21:08:55,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7648 to 6514. [2022-11-18 21:08:55,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6514 states, 4643 states have (on average 1.3237131165194918) internal successors, (6146), 4767 states have internal predecessors, (6146), 1440 states have call successors, (1440), 407 states have call predecessors, (1440), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2022-11-18 21:08:55,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6514 states to 6514 states and 9269 transitions. [2022-11-18 21:08:55,151 INFO L78 Accepts]: Start accepts. Automaton has 6514 states and 9269 transitions. Word has length 39 [2022-11-18 21:08:55,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:08:55,153 INFO L495 AbstractCegarLoop]: Abstraction has 6514 states and 9269 transitions. [2022-11-18 21:08:55,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:08:55,153 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states and 9269 transitions. [2022-11-18 21:08:55,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-18 21:08:55,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:08:55,155 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:08:55,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:08:55,156 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:08:55,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:08:55,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1054139440, now seen corresponding path program 1 times [2022-11-18 21:08:55,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:08:55,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907480720] [2022-11-18 21:08:55,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:08:55,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:08:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:55,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:08:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:55,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:08:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:55,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:08:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:55,551 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 21:08:55,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:08:55,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907480720] [2022-11-18 21:08:55,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907480720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:08:55,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:08:55,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:08:55,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662683961] [2022-11-18 21:08:55,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:08:55,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:08:55,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:08:55,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:08:55,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:08:55,554 INFO L87 Difference]: Start difference. First operand 6514 states and 9269 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:08:57,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:08:59,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:04,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:09:04,322 INFO L93 Difference]: Finished difference Result 7646 states and 11117 transitions. [2022-11-18 21:09:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:09:04,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-11-18 21:09:04,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:09:04,368 INFO L225 Difference]: With dead ends: 7646 [2022-11-18 21:09:04,369 INFO L226 Difference]: Without dead ends: 7643 [2022-11-18 21:09:04,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:09:04,375 INFO L413 NwaCegarLoop]: 1125 mSDtfsCounter, 2236 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 1194 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1194 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:09:04,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2339 Valid, 3216 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1194 Valid, 1436 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-11-18 21:09:04,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7643 states. [2022-11-18 21:09:04,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7643 to 6515. [2022-11-18 21:09:04,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6515 states, 4644 states have (on average 1.323643410852713) internal successors, (6147), 4768 states have internal predecessors, (6147), 1440 states have call successors, (1440), 407 states have call predecessors, (1440), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2022-11-18 21:09:04,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6515 states to 6515 states and 9270 transitions. [2022-11-18 21:09:04,896 INFO L78 Accepts]: Start accepts. Automaton has 6515 states and 9270 transitions. Word has length 40 [2022-11-18 21:09:04,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:09:04,896 INFO L495 AbstractCegarLoop]: Abstraction has 6515 states and 9270 transitions. [2022-11-18 21:09:04,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:09:04,898 INFO L276 IsEmpty]: Start isEmpty. Operand 6515 states and 9270 transitions. [2022-11-18 21:09:04,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-18 21:09:04,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:09:04,899 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:09:04,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:09:04,899 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:09:04,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:04,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1681818426, now seen corresponding path program 1 times [2022-11-18 21:09:04,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:04,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929645471] [2022-11-18 21:09:04,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:04,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:09:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:05,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:09:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:09:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 21:09:05,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:05,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929645471] [2022-11-18 21:09:05,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929645471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:05,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:05,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:09:05,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279778875] [2022-11-18 21:09:05,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:05,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:09:05,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:05,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:09:05,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:09:05,289 INFO L87 Difference]: Start difference. First operand 6515 states and 9270 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:09:07,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:09,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:12,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:09:12,357 INFO L93 Difference]: Finished difference Result 7642 states and 11113 transitions. [2022-11-18 21:09:12,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:09:12,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-11-18 21:09:12,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:09:12,401 INFO L225 Difference]: With dead ends: 7642 [2022-11-18 21:09:12,401 INFO L226 Difference]: Without dead ends: 7639 [2022-11-18 21:09:12,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:09:12,410 INFO L413 NwaCegarLoop]: 902 mSDtfsCounter, 1679 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 680 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-18 21:09:12,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1775 Valid, 1963 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 716 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-11-18 21:09:12,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7639 states. [2022-11-18 21:09:12,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7639 to 6514. [2022-11-18 21:09:12,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6514 states, 4644 states have (on average 1.3234280792420328) internal successors, (6146), 4767 states have internal predecessors, (6146), 1439 states have call successors, (1439), 407 states have call predecessors, (1439), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2022-11-18 21:09:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6514 states to 6514 states and 9268 transitions. [2022-11-18 21:09:12,918 INFO L78 Accepts]: Start accepts. Automaton has 6514 states and 9268 transitions. Word has length 41 [2022-11-18 21:09:12,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:09:12,921 INFO L495 AbstractCegarLoop]: Abstraction has 6514 states and 9268 transitions. [2022-11-18 21:09:12,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:09:12,921 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states and 9268 transitions. [2022-11-18 21:09:12,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 21:09:12,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:09:12,924 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:09:12,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:09:12,924 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:09:12,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash -597161485, now seen corresponding path program 1 times [2022-11-18 21:09:12,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:12,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063468112] [2022-11-18 21:09:12,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:12,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:13,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:09:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:13,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:09:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:13,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:09:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 21:09:13,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:13,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063468112] [2022-11-18 21:09:13,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063468112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:13,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:13,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:09:13,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515213614] [2022-11-18 21:09:13,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:13,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:09:13,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:13,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:09:13,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:09:13,272 INFO L87 Difference]: Start difference. First operand 6514 states and 9268 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:09:15,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:17,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:19,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:09:19,942 INFO L93 Difference]: Finished difference Result 7641 states and 11111 transitions. [2022-11-18 21:09:19,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:09:19,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-11-18 21:09:19,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:09:19,984 INFO L225 Difference]: With dead ends: 7641 [2022-11-18 21:09:19,984 INFO L226 Difference]: Without dead ends: 7629 [2022-11-18 21:09:19,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:09:19,991 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 1660 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 668 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 1967 SdHoareTripleChecker+Invalid, 1391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:09:19,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1756 Valid, 1967 Invalid, 1391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 721 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-11-18 21:09:19,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7629 states. [2022-11-18 21:09:20,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7629 to 6504. [2022-11-18 21:09:20,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6504 states, 4635 states have (on average 1.32319309600863) internal successors, (6133), 4757 states have internal predecessors, (6133), 1438 states have call successors, (1438), 407 states have call predecessors, (1438), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2022-11-18 21:09:20,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6504 states to 6504 states and 9254 transitions. [2022-11-18 21:09:20,541 INFO L78 Accepts]: Start accepts. Automaton has 6504 states and 9254 transitions. Word has length 42 [2022-11-18 21:09:20,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:09:20,542 INFO L495 AbstractCegarLoop]: Abstraction has 6504 states and 9254 transitions. [2022-11-18 21:09:20,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:09:20,542 INFO L276 IsEmpty]: Start isEmpty. Operand 6504 states and 9254 transitions. [2022-11-18 21:09:20,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-18 21:09:20,551 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:09:20,551 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:09:20,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:09:20,552 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:09:20,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:20,552 INFO L85 PathProgramCache]: Analyzing trace with hash -840605855, now seen corresponding path program 1 times [2022-11-18 21:09:20,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:20,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659219407] [2022-11-18 21:09:20,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:20,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:20,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:09:20,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:20,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:09:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:20,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 21:09:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:09:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:09:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:09:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 21:09:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:09:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 21:09:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:09:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:09:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 21:09:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:09:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 21:09:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 21:09:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 21:09:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 21:09:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 21:09:21,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:21,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659219407] [2022-11-18 21:09:21,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659219407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:21,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:21,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 21:09:21,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365194969] [2022-11-18 21:09:21,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:21,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:09:21,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:21,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:09:21,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:09:21,342 INFO L87 Difference]: Start difference. First operand 6504 states and 9254 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 9 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 21:09:23,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:25,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:27,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:33,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:09:33,751 INFO L93 Difference]: Finished difference Result 16703 states and 24684 transitions. [2022-11-18 21:09:33,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 21:09:33,752 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 9 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146 [2022-11-18 21:09:33,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:09:33,805 INFO L225 Difference]: With dead ends: 16703 [2022-11-18 21:09:33,805 INFO L226 Difference]: Without dead ends: 10217 [2022-11-18 21:09:33,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2022-11-18 21:09:33,838 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 1786 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 2943 mSolverCounterSat, 1076 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 3414 SdHoareTripleChecker+Invalid, 4022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1076 IncrementalHoareTripleChecker+Valid, 2943 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:09:33,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1975 Valid, 3414 Invalid, 4022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1076 Valid, 2943 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2022-11-18 21:09:33,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10217 states. [2022-11-18 21:09:34,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10217 to 7370. [2022-11-18 21:09:34,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7370 states, 5270 states have (on average 1.3041745730550285) internal successors, (6873), 5412 states have internal predecessors, (6873), 1564 states have call successors, (1564), 408 states have call predecessors, (1564), 535 states have return successors, (2125), 1657 states have call predecessors, (2125), 1561 states have call successors, (2125) [2022-11-18 21:09:34,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7370 states to 7370 states and 10562 transitions. [2022-11-18 21:09:34,775 INFO L78 Accepts]: Start accepts. Automaton has 7370 states and 10562 transitions. Word has length 146 [2022-11-18 21:09:34,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:09:34,776 INFO L495 AbstractCegarLoop]: Abstraction has 7370 states and 10562 transitions. [2022-11-18 21:09:34,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (18), 9 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 21:09:34,776 INFO L276 IsEmpty]: Start isEmpty. Operand 7370 states and 10562 transitions. [2022-11-18 21:09:34,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-11-18 21:09:34,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:09:34,784 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:09:34,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:09:34,785 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:09:34,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:34,785 INFO L85 PathProgramCache]: Analyzing trace with hash 32771393, now seen corresponding path program 1 times [2022-11-18 21:09:34,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:34,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076984473] [2022-11-18 21:09:34,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:34,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:09:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:09:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:09:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 21:09:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:09:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:09:35,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:09:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 21:09:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 21:09:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 21:09:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:09:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 21:09:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 21:09:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:09:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 21:09:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-18 21:09:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 21:09:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 21:09:35,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:35,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076984473] [2022-11-18 21:09:35,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076984473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:35,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:35,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 21:09:35,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698799965] [2022-11-18 21:09:35,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:35,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:09:35,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:35,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:09:35,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:09:35,549 INFO L87 Difference]: Start difference. First operand 7370 states and 10562 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (18), 9 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-18 21:09:37,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:39,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:41,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:43,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:49,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:09:49,705 INFO L93 Difference]: Finished difference Result 18001 states and 26540 transitions. [2022-11-18 21:09:49,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 21:09:49,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (18), 9 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 155 [2022-11-18 21:09:49,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:09:49,832 INFO L225 Difference]: With dead ends: 18001 [2022-11-18 21:09:49,832 INFO L226 Difference]: Without dead ends: 10653 [2022-11-18 21:09:49,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-11-18 21:09:49,862 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 3084 mSDsluCounter, 1800 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 2263 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3284 SdHoareTripleChecker+Valid, 2506 SdHoareTripleChecker+Invalid, 4513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2263 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-11-18 21:09:49,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3284 Valid, 2506 Invalid, 4513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2263 Valid, 2246 Invalid, 4 Unknown, 0 Unchecked, 12.9s Time] [2022-11-18 21:09:49,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10653 states. [2022-11-18 21:09:50,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10653 to 7742. [2022-11-18 21:09:50,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7742 states, 5594 states have (on average 1.302824454772971) internal successors, (7288), 5736 states have internal predecessors, (7288), 1580 states have call successors, (1580), 440 states have call predecessors, (1580), 567 states have return successors, (2117), 1673 states have call predecessors, (2117), 1577 states have call successors, (2117) [2022-11-18 21:09:50,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7742 states to 7742 states and 10985 transitions. [2022-11-18 21:09:50,728 INFO L78 Accepts]: Start accepts. Automaton has 7742 states and 10985 transitions. Word has length 155 [2022-11-18 21:09:50,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:09:50,728 INFO L495 AbstractCegarLoop]: Abstraction has 7742 states and 10985 transitions. [2022-11-18 21:09:50,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (18), 9 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-18 21:09:50,729 INFO L276 IsEmpty]: Start isEmpty. Operand 7742 states and 10985 transitions. [2022-11-18 21:09:50,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-18 21:09:50,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:09:50,735 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:09:50,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:09:50,735 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:09:50,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:50,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1617847021, now seen corresponding path program 1 times [2022-11-18 21:09:50,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:50,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270436105] [2022-11-18 21:09:50,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:50,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:09:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:09:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:09:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 21:09:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:09:51,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 21:09:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 21:09:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 21:09:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:09:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 21:09:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 21:09:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:09:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:09:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 21:09:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:09:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 21:09:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 21:09:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 21:09:51,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:51,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270436105] [2022-11-18 21:09:51,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270436105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:51,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:51,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 21:09:51,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231849383] [2022-11-18 21:09:51,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:51,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:09:51,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:51,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:09:51,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:09:51,494 INFO L87 Difference]: Start difference. First operand 7742 states and 10985 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 21:09:53,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:55,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:57,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:09:59,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:10:05,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:05,381 INFO L93 Difference]: Finished difference Result 20561 states and 30546 transitions. [2022-11-18 21:10:05,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 21:10:05,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 156 [2022-11-18 21:10:05,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:05,436 INFO L225 Difference]: With dead ends: 20561 [2022-11-18 21:10:05,437 INFO L226 Difference]: Without dead ends: 12841 [2022-11-18 21:10:05,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-18 21:10:05,461 INFO L413 NwaCegarLoop]: 785 mSDtfsCounter, 1613 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 2145 mSolverCounterSat, 1138 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 2145 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:10:05,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 3265 Invalid, 3287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 2145 Invalid, 4 Unknown, 0 Unchecked, 12.3s Time] [2022-11-18 21:10:05,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12841 states. [2022-11-18 21:10:06,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12841 to 7836. [2022-11-18 21:10:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7836 states, 5634 states have (on average 1.3059992900248492) internal successors, (7358), 5776 states have internal predecessors, (7358), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 539 states have return successors, (1963), 1735 states have call predecessors, (1963), 1659 states have call successors, (1963) [2022-11-18 21:10:06,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7836 states to 7836 states and 10983 transitions. [2022-11-18 21:10:06,658 INFO L78 Accepts]: Start accepts. Automaton has 7836 states and 10983 transitions. Word has length 156 [2022-11-18 21:10:06,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:06,660 INFO L495 AbstractCegarLoop]: Abstraction has 7836 states and 10983 transitions. [2022-11-18 21:10:06,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 21:10:06,660 INFO L276 IsEmpty]: Start isEmpty. Operand 7836 states and 10983 transitions. [2022-11-18 21:10:06,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-18 21:10:06,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:06,666 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:06,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:10:06,666 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:10:06,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:06,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1401651309, now seen corresponding path program 1 times [2022-11-18 21:10:06,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:06,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940108665] [2022-11-18 21:10:06,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:06,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:10:07,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:10:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:10:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 21:10:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:10:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 21:10:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 21:10:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 21:10:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:10:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 21:10:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 21:10:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:10:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:10:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 21:10:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:10:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 21:10:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 21:10:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 21:10:07,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:07,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940108665] [2022-11-18 21:10:07,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940108665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:07,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:10:07,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 21:10:07,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387491732] [2022-11-18 21:10:07,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:07,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:10:07,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:07,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:10:07,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:10:07,841 INFO L87 Difference]: Start difference. First operand 7836 states and 10983 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 21:10:09,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:10:11,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:10:13,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:10:15,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:10:23,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:23,532 INFO L93 Difference]: Finished difference Result 21875 states and 32630 transitions. [2022-11-18 21:10:23,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 21:10:23,532 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 158 [2022-11-18 21:10:23,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:23,609 INFO L225 Difference]: With dead ends: 21875 [2022-11-18 21:10:23,609 INFO L226 Difference]: Without dead ends: 14061 [2022-11-18 21:10:23,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-11-18 21:10:23,640 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 1764 mSDsluCounter, 5755 mSDsCounter, 0 mSdLazyCounter, 3836 mSolverCounterSat, 1130 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 6716 SdHoareTripleChecker+Invalid, 4970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1130 IncrementalHoareTripleChecker+Valid, 3836 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-18 21:10:23,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 6716 Invalid, 4970 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1130 Valid, 3836 Invalid, 4 Unknown, 0 Unchecked, 13.8s Time] [2022-11-18 21:10:23,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14061 states. [2022-11-18 21:10:24,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14061 to 7868. [2022-11-18 21:10:24,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7868 states, 5658 states have (on average 1.304701307882644) internal successors, (7382), 5800 states have internal predecessors, (7382), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2022-11-18 21:10:24,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7868 states to 7868 states and 11015 transitions. [2022-11-18 21:10:24,729 INFO L78 Accepts]: Start accepts. Automaton has 7868 states and 11015 transitions. Word has length 158 [2022-11-18 21:10:24,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:24,730 INFO L495 AbstractCegarLoop]: Abstraction has 7868 states and 11015 transitions. [2022-11-18 21:10:24,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 21:10:24,731 INFO L276 IsEmpty]: Start isEmpty. Operand 7868 states and 11015 transitions. [2022-11-18 21:10:24,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-18 21:10:24,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:24,737 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:24,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:10:24,737 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:10:24,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:24,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1702925172, now seen corresponding path program 1 times [2022-11-18 21:10:24,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:24,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645981287] [2022-11-18 21:10:24,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:24,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:10:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:10:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:10:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 21:10:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:10:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 21:10:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 21:10:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 21:10:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:10:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 21:10:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 21:10:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:10:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:10:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 21:10:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:10:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 21:10:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 21:10:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:25,471 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 21:10:25,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:25,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645981287] [2022-11-18 21:10:25,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645981287] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:10:25,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099963724] [2022-11-18 21:10:25,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:25,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:10:25,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:10:25,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:10:25,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 21:10:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:26,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 3585 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 21:10:26,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:10:26,763 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 21:10:26,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:10:26,894 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 21:10:26,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099963724] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:10:26,895 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:10:26,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 9 [2022-11-18 21:10:26,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496648981] [2022-11-18 21:10:26,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:10:26,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 21:10:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:26,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 21:10:26,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 21:10:26,898 INFO L87 Difference]: Start difference. First operand 7868 states and 11015 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 21:10:28,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:10:30,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:10:32,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:10:38,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:38,740 INFO L93 Difference]: Finished difference Result 20755 states and 30628 transitions. [2022-11-18 21:10:38,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 21:10:38,740 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 159 [2022-11-18 21:10:38,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:38,807 INFO L225 Difference]: With dead ends: 20755 [2022-11-18 21:10:38,807 INFO L226 Difference]: Without dead ends: 12909 [2022-11-18 21:10:38,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 350 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2022-11-18 21:10:38,836 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 1945 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 1462 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 3265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1462 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:10:38,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 2783 Invalid, 3265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1462 Valid, 1800 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2022-11-18 21:10:38,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12909 states. [2022-11-18 21:10:39,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12909 to 7908. [2022-11-18 21:10:39,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7908 states, 5698 states have (on average 1.3039663039663039) internal successors, (7430), 5840 states have internal predecessors, (7430), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2022-11-18 21:10:39,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7908 states to 7908 states and 11063 transitions. [2022-11-18 21:10:39,884 INFO L78 Accepts]: Start accepts. Automaton has 7908 states and 11063 transitions. Word has length 159 [2022-11-18 21:10:39,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:39,884 INFO L495 AbstractCegarLoop]: Abstraction has 7908 states and 11063 transitions. [2022-11-18 21:10:39,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 21:10:39,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7908 states and 11063 transitions. [2022-11-18 21:10:39,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-18 21:10:39,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:39,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:39,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 21:10:40,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:10:40,104 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:10:40,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:40,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1557375796, now seen corresponding path program 1 times [2022-11-18 21:10:40,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:40,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584176893] [2022-11-18 21:10:40,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:40,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:10:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:10:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:10:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 21:10:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:10:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 21:10:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 21:10:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 21:10:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:10:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 21:10:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 21:10:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:10:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:10:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 21:10:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:10:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 21:10:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 21:10:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:40,944 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-18 21:10:40,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:40,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584176893] [2022-11-18 21:10:40,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584176893] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:10:40,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071336276] [2022-11-18 21:10:40,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:40,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:10:40,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:10:40,947 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:10:40,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 21:10:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:42,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 3590 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 21:10:42,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:10:42,245 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 21:10:42,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:10:42,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071336276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:10:42,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:10:42,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-11-18 21:10:42,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674763106] [2022-11-18 21:10:42,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:10:42,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:10:42,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:10:42,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:10:42,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:10:42,248 INFO L87 Difference]: Start difference. First operand 7908 states and 11063 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 21:10:43,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:10:43,094 INFO L93 Difference]: Finished difference Result 17058 states and 24020 transitions. [2022-11-18 21:10:43,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:10:43,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 161 [2022-11-18 21:10:43,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:10:43,135 INFO L225 Difference]: With dead ends: 17058 [2022-11-18 21:10:43,135 INFO L226 Difference]: Without dead ends: 9172 [2022-11-18 21:10:43,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-18 21:10:43,162 INFO L413 NwaCegarLoop]: 1320 mSDtfsCounter, 162 mSDsluCounter, 5101 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 6421 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:10:43,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 6421 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:10:43,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9172 states. [2022-11-18 21:10:44,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9172 to 7900. [2022-11-18 21:10:44,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7900 states, 5690 states have (on average 1.3043936731107206) internal successors, (7422), 5832 states have internal predecessors, (7422), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2022-11-18 21:10:44,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7900 states to 7900 states and 11055 transitions. [2022-11-18 21:10:44,067 INFO L78 Accepts]: Start accepts. Automaton has 7900 states and 11055 transitions. Word has length 161 [2022-11-18 21:10:44,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:10:44,067 INFO L495 AbstractCegarLoop]: Abstraction has 7900 states and 11055 transitions. [2022-11-18 21:10:44,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 21:10:44,068 INFO L276 IsEmpty]: Start isEmpty. Operand 7900 states and 11055 transitions. [2022-11-18 21:10:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-18 21:10:44,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:10:44,076 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:10:44,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 21:10:44,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:10:44,290 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:10:44,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:10:44,290 INFO L85 PathProgramCache]: Analyzing trace with hash -89469140, now seen corresponding path program 2 times [2022-11-18 21:10:44,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:10:44,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291025874] [2022-11-18 21:10:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:10:44,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:10:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:44,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:10:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:44,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:10:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:44,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:10:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:44,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 21:10:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:44,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:10:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:44,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 21:10:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 21:10:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 21:10:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:10:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 21:10:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 21:10:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:10:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:10:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 21:10:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:10:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 21:10:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 21:10:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:10:45,163 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-11-18 21:10:45,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:10:45,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291025874] [2022-11-18 21:10:45,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291025874] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:10:45,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604940745] [2022-11-18 21:10:45,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:10:45,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:10:45,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:10:45,165 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:10:45,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 21:11:02,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 21:11:02,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:11:02,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 3601 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 21:11:02,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:11:02,457 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-11-18 21:11:02,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:11:02,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604940745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:02,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:11:02,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2022-11-18 21:11:02,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083326998] [2022-11-18 21:11:02,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:02,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:11:02,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:02,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:11:02,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-18 21:11:02,460 INFO L87 Difference]: Start difference. First operand 7900 states and 11055 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 21:11:04,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:05,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:11:05,723 INFO L93 Difference]: Finished difference Result 18408 states and 25713 transitions. [2022-11-18 21:11:05,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 21:11:05,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 165 [2022-11-18 21:11:05,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:11:05,768 INFO L225 Difference]: With dead ends: 18408 [2022-11-18 21:11:05,768 INFO L226 Difference]: Without dead ends: 10530 [2022-11-18 21:11:05,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2022-11-18 21:11:05,796 INFO L413 NwaCegarLoop]: 1383 mSDtfsCounter, 811 mSDsluCounter, 7907 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 65 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 9290 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:11:05,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 9290 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 111 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-18 21:11:05,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10530 states. [2022-11-18 21:11:06,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10530 to 7924. [2022-11-18 21:11:06,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7924 states, 5714 states have (on average 1.3017150857542876) internal successors, (7438), 5856 states have internal predecessors, (7438), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2022-11-18 21:11:06,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 11071 transitions. [2022-11-18 21:11:06,804 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 11071 transitions. Word has length 165 [2022-11-18 21:11:06,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:11:06,804 INFO L495 AbstractCegarLoop]: Abstraction has 7924 states and 11071 transitions. [2022-11-18 21:11:06,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-18 21:11:06,804 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 11071 transitions. [2022-11-18 21:11:06,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-18 21:11:06,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:11:06,812 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:06,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 21:11:07,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 21:11:07,027 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:11:07,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:07,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1369332818, now seen corresponding path program 1 times [2022-11-18 21:11:07,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:07,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656663068] [2022-11-18 21:11:07,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:07,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:08,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:11:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:11:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 21:11:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 21:11:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-18 21:11:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 21:11:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:11:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 21:11:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 21:11:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:11:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 21:11:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 21:11:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 21:11:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-18 21:11:08,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:08,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656663068] [2022-11-18 21:11:08,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656663068] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:11:08,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435646168] [2022-11-18 21:11:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:08,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:11:08,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:11:08,763 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:11:08,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 21:11:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:10,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 3596 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 21:11:10,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:11:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-18 21:11:10,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:11:10,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435646168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:10,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:11:10,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2022-11-18 21:11:10,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510810494] [2022-11-18 21:11:10,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:10,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 21:11:10,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:10,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 21:11:10,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-18 21:11:10,612 INFO L87 Difference]: Start difference. First operand 7924 states and 11071 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 21:11:12,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:14,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:16,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:18,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:21,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:11:21,889 INFO L93 Difference]: Finished difference Result 16215 states and 22756 transitions. [2022-11-18 21:11:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:11:21,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 165 [2022-11-18 21:11:21,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:11:21,911 INFO L225 Difference]: With dead ends: 16215 [2022-11-18 21:11:21,912 INFO L226 Difference]: Without dead ends: 8313 [2022-11-18 21:11:21,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-18 21:11:21,933 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 1257 mSDsluCounter, 4306 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 5852 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:11:21,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 5852 Invalid, 1639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1622 Invalid, 4 Unknown, 0 Unchecked, 10.2s Time] [2022-11-18 21:11:21,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8313 states. [2022-11-18 21:11:22,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8313 to 7944. [2022-11-18 21:11:22,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7944 states, 5730 states have (on average 1.30087260034904) internal successors, (7454), 5872 states have internal predecessors, (7454), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 551 states have return successors, (1979), 1747 states have call predecessors, (1979), 1659 states have call successors, (1979) [2022-11-18 21:11:22,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7944 states to 7944 states and 11095 transitions. [2022-11-18 21:11:22,795 INFO L78 Accepts]: Start accepts. Automaton has 7944 states and 11095 transitions. Word has length 165 [2022-11-18 21:11:22,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:11:22,795 INFO L495 AbstractCegarLoop]: Abstraction has 7944 states and 11095 transitions. [2022-11-18 21:11:22,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 21:11:22,796 INFO L276 IsEmpty]: Start isEmpty. Operand 7944 states and 11095 transitions. [2022-11-18 21:11:22,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-18 21:11:22,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:11:22,802 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:22,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-18 21:11:23,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 21:11:23,016 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:11:23,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1978394387, now seen corresponding path program 1 times [2022-11-18 21:11:23,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:23,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984194579] [2022-11-18 21:11:23,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:23,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:11:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:11:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 21:11:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 21:11:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 21:11:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 21:11:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 21:11:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 21:11:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:11:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 21:11:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 21:11:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 21:11:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-18 21:11:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-18 21:11:24,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:24,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984194579] [2022-11-18 21:11:24,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984194579] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:11:24,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570824847] [2022-11-18 21:11:24,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:24,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:11:24,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:11:24,528 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:11:24,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 21:11:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:25,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 3622 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 21:11:25,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:11:25,935 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 21:11:25,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:11:25,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570824847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:25,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:11:25,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-11-18 21:11:25,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722223723] [2022-11-18 21:11:25,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:25,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:11:25,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:25,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:11:25,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:11:25,940 INFO L87 Difference]: Start difference. First operand 7944 states and 11095 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 21:11:27,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:11:27,064 INFO L93 Difference]: Finished difference Result 16994 states and 23892 transitions. [2022-11-18 21:11:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:11:27,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2022-11-18 21:11:27,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:11:27,099 INFO L225 Difference]: With dead ends: 16994 [2022-11-18 21:11:27,100 INFO L226 Difference]: Without dead ends: 9072 [2022-11-18 21:11:27,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:11:27,126 INFO L413 NwaCegarLoop]: 1221 mSDtfsCounter, 134 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:11:27,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 2360 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:11:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9072 states. [2022-11-18 21:11:28,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9072 to 8120. [2022-11-18 21:11:28,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8120 states, 5906 states have (on average 1.3054520826278362) internal successors, (7710), 6048 states have internal predecessors, (7710), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 551 states have return successors, (1979), 1747 states have call predecessors, (1979), 1659 states have call successors, (1979) [2022-11-18 21:11:28,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8120 states to 8120 states and 11351 transitions. [2022-11-18 21:11:28,144 INFO L78 Accepts]: Start accepts. Automaton has 8120 states and 11351 transitions. Word has length 171 [2022-11-18 21:11:28,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:11:28,145 INFO L495 AbstractCegarLoop]: Abstraction has 8120 states and 11351 transitions. [2022-11-18 21:11:28,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 21:11:28,145 INFO L276 IsEmpty]: Start isEmpty. Operand 8120 states and 11351 transitions. [2022-11-18 21:11:28,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-18 21:11:28,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:11:28,152 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:28,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 21:11:28,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 21:11:28,367 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:11:28,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1807827451, now seen corresponding path program 1 times [2022-11-18 21:11:28,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:28,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170972933] [2022-11-18 21:11:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:28,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:11:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:11:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 21:11:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-18 21:11:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-18 21:11:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-18 21:11:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 21:11:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 21:11:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 21:11:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 21:11:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-18 21:11:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 21:11:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 21:11:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:29,899 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-18 21:11:29,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:29,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170972933] [2022-11-18 21:11:29,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170972933] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:11:29,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193345226] [2022-11-18 21:11:29,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:29,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:11:29,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:11:29,903 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:11:29,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 21:11:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:31,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 3686 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 21:11:31,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:11:31,598 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-18 21:11:31,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:11:31,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193345226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:31,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:11:31,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-18 21:11:31,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673224258] [2022-11-18 21:11:31,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:31,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:11:31,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:31,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:11:31,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:11:31,601 INFO L87 Difference]: Start difference. First operand 8120 states and 11351 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 21:11:33,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:35,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:37,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:40,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:11:40,138 INFO L93 Difference]: Finished difference Result 16248 states and 23028 transitions. [2022-11-18 21:11:40,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:11:40,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2022-11-18 21:11:40,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:11:40,172 INFO L225 Difference]: With dead ends: 16248 [2022-11-18 21:11:40,172 INFO L226 Difference]: Without dead ends: 8134 [2022-11-18 21:11:40,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-18 21:11:40,202 INFO L413 NwaCegarLoop]: 1460 mSDtfsCounter, 1105 mSDsluCounter, 4040 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 5500 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-18 21:11:40,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 5500 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1174 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-11-18 21:11:40,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8134 states. [2022-11-18 21:11:41,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8134 to 8128. [2022-11-18 21:11:41,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8128 states, 5910 states have (on average 1.3052453468697123) internal successors, (7714), 6056 states have internal predecessors, (7714), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 555 states have return successors, (2007), 1747 states have call predecessors, (2007), 1659 states have call successors, (2007) [2022-11-18 21:11:41,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8128 states to 8128 states and 11383 transitions. [2022-11-18 21:11:41,156 INFO L78 Accepts]: Start accepts. Automaton has 8128 states and 11383 transitions. Word has length 175 [2022-11-18 21:11:41,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:11:41,156 INFO L495 AbstractCegarLoop]: Abstraction has 8128 states and 11383 transitions. [2022-11-18 21:11:41,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 21:11:41,157 INFO L276 IsEmpty]: Start isEmpty. Operand 8128 states and 11383 transitions. [2022-11-18 21:11:41,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-18 21:11:41,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:11:41,164 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:41,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 21:11:41,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 21:11:41,378 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:11:41,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:41,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1902405635, now seen corresponding path program 1 times [2022-11-18 21:11:41,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:41,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906913837] [2022-11-18 21:11:41,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:41,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:41,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:41,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:41,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:11:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:11:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:41,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 21:11:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:41,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 21:11:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 21:11:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 21:11:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 21:11:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 21:11:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 21:11:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 21:11:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 21:11:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 21:11:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 21:11:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-18 21:11:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:42,187 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-18 21:11:42,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:42,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906913837] [2022-11-18 21:11:42,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906913837] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:11:42,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259387183] [2022-11-18 21:11:42,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:42,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:11:42,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:11:42,190 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:11:42,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 21:11:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:43,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 3848 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 21:11:43,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:11:44,011 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-18 21:11:44,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:11:44,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259387183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:44,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 21:11:44,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2022-11-18 21:11:44,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262287490] [2022-11-18 21:11:44,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:44,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:11:44,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:44,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:11:44,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-18 21:11:44,015 INFO L87 Difference]: Start difference. First operand 8128 states and 11383 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 21:11:46,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:11:47,007 INFO L93 Difference]: Finished difference Result 9787 states and 13494 transitions. [2022-11-18 21:11:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:11:47,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 197 [2022-11-18 21:11:47,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:11:47,033 INFO L225 Difference]: With dead ends: 9787 [2022-11-18 21:11:47,033 INFO L226 Difference]: Without dead ends: 9765 [2022-11-18 21:11:47,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-18 21:11:47,040 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 1216 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:11:47,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 1597 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 21:11:47,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9765 states. [2022-11-18 21:11:47,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9765 to 9752. [2022-11-18 21:11:47,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9752 states, 7298 states have (on average 1.2988489997259522) internal successors, (9479), 7448 states have internal predecessors, (9479), 1798 states have call successors, (1798), 524 states have call predecessors, (1798), 655 states have return successors, (2171), 1895 states have call predecessors, (2171), 1795 states have call successors, (2171) [2022-11-18 21:11:48,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9752 states to 9752 states and 13448 transitions. [2022-11-18 21:11:48,002 INFO L78 Accepts]: Start accepts. Automaton has 9752 states and 13448 transitions. Word has length 197 [2022-11-18 21:11:48,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:11:48,003 INFO L495 AbstractCegarLoop]: Abstraction has 9752 states and 13448 transitions. [2022-11-18 21:11:48,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 21:11:48,004 INFO L276 IsEmpty]: Start isEmpty. Operand 9752 states and 13448 transitions. [2022-11-18 21:11:48,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-18 21:11:48,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:11:48,011 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:11:48,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 21:11:48,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 21:11:48,223 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:11:48,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:11:48,224 INFO L85 PathProgramCache]: Analyzing trace with hash 622541957, now seen corresponding path program 1 times [2022-11-18 21:11:48,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:11:48,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365645564] [2022-11-18 21:11:48,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:11:48,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:11:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:11:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 21:11:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 21:11:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 21:11:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 21:11:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 21:11:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-18 21:11:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 21:11:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-18 21:11:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-18 21:11:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 21:11:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:11:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 21:11:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 21:11:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-18 21:11:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:11:49,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:11:49,505 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-18 21:11:49,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:11:49,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365645564] [2022-11-18 21:11:49,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365645564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:11:49,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:11:49,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 21:11:49,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722559634] [2022-11-18 21:11:49,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:11:49,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:11:49,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:11:49,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:11:49,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:11:49,511 INFO L87 Difference]: Start difference. First operand 9752 states and 13448 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 21:11:51,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:53,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:55,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:11:57,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:12:04,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:12:04,413 INFO L93 Difference]: Finished difference Result 24040 states and 34575 transitions. [2022-11-18 21:12:04,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 21:12:04,414 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 197 [2022-11-18 21:12:04,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:12:04,454 INFO L225 Difference]: With dead ends: 24040 [2022-11-18 21:12:04,454 INFO L226 Difference]: Without dead ends: 14307 [2022-11-18 21:12:04,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-18 21:12:04,471 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 1571 mSDsluCounter, 3224 mSDsCounter, 0 mSdLazyCounter, 2729 mSolverCounterSat, 1120 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1702 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 3853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1120 IncrementalHoareTripleChecker+Valid, 2729 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-18 21:12:04,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1702 Valid, 4010 Invalid, 3853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1120 Valid, 2729 Invalid, 4 Unknown, 0 Unchecked, 12.7s Time] [2022-11-18 21:12:04,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14307 states. [2022-11-18 21:12:05,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14307 to 9753. [2022-11-18 21:12:05,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9753 states, 7299 states have (on average 1.2988080558980681) internal successors, (9480), 7449 states have internal predecessors, (9480), 1798 states have call successors, (1798), 524 states have call predecessors, (1798), 655 states have return successors, (2171), 1895 states have call predecessors, (2171), 1795 states have call successors, (2171) [2022-11-18 21:12:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9753 states to 9753 states and 13449 transitions. [2022-11-18 21:12:05,683 INFO L78 Accepts]: Start accepts. Automaton has 9753 states and 13449 transitions. Word has length 197 [2022-11-18 21:12:05,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:12:05,683 INFO L495 AbstractCegarLoop]: Abstraction has 9753 states and 13449 transitions. [2022-11-18 21:12:05,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 21:12:05,683 INFO L276 IsEmpty]: Start isEmpty. Operand 9753 states and 13449 transitions. [2022-11-18 21:12:05,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-18 21:12:05,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:12:05,688 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:12:05,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 21:12:05,689 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:12:05,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:12:05,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1929756347, now seen corresponding path program 1 times [2022-11-18 21:12:05,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:12:05,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234808562] [2022-11-18 21:12:05,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:12:05,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:12:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:12:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 21:12:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 21:12:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 21:12:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:12:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 21:12:06,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:12:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 21:12:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 21:12:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 21:12:06,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:06,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 21:12:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:07,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 21:12:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:07,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 21:12:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:07,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:12:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:07,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-11-18 21:12:07,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:07,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 21:12:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:12:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:07,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-18 21:12:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:07,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 21:12:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:07,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-18 21:12:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:07,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:12:07,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-18 21:12:07,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:12:07,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234808562] [2022-11-18 21:12:07,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234808562] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 21:12:07,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221353597] [2022-11-18 21:12:07,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:12:07,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:12:07,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:12:07,123 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 21:12:07,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 21:12:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:12:09,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 3858 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 21:12:09,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:12:09,575 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-18 21:12:09,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:12:09,793 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-18 21:12:09,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221353597] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:12:09,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 21:12:09,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2022-11-18 21:12:09,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310580248] [2022-11-18 21:12:09,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 21:12:09,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 21:12:09,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:12:09,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 21:12:09,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-18 21:12:09,795 INFO L87 Difference]: Start difference. First operand 9753 states and 13449 transitions. Second operand has 14 states, 14 states have (on average 11.5) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (44), 6 states have call predecessors, (44), 5 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-18 21:12:11,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:12:13,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:12:15,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:12:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:12:24,669 INFO L93 Difference]: Finished difference Result 24045 states and 34582 transitions. [2022-11-18 21:12:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 21:12:24,670 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (44), 6 states have call predecessors, (44), 5 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 198 [2022-11-18 21:12:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:12:24,711 INFO L225 Difference]: With dead ends: 24045 [2022-11-18 21:12:24,711 INFO L226 Difference]: Without dead ends: 14310 [2022-11-18 21:12:24,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 432 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2022-11-18 21:12:24,731 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 1603 mSDsluCounter, 5465 mSDsCounter, 0 mSdLazyCounter, 4273 mSolverCounterSat, 1121 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 6251 SdHoareTripleChecker+Invalid, 5397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1121 IncrementalHoareTripleChecker+Valid, 4273 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:12:24,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 6251 Invalid, 5397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1121 Valid, 4273 Invalid, 3 Unknown, 0 Unchecked, 12.2s Time] [2022-11-18 21:12:24,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14310 states. [2022-11-18 21:12:25,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14310 to 9756. [2022-11-18 21:12:25,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9756 states, 7302 states have (on average 1.298685291700904) internal successors, (9483), 7452 states have internal predecessors, (9483), 1798 states have call successors, (1798), 524 states have call predecessors, (1798), 655 states have return successors, (2171), 1895 states have call predecessors, (2171), 1795 states have call successors, (2171) [2022-11-18 21:12:25,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9756 states to 9756 states and 13452 transitions. [2022-11-18 21:12:25,881 INFO L78 Accepts]: Start accepts. Automaton has 9756 states and 13452 transitions. Word has length 198 [2022-11-18 21:12:25,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:12:25,881 INFO L495 AbstractCegarLoop]: Abstraction has 9756 states and 13452 transitions. [2022-11-18 21:12:25,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (44), 6 states have call predecessors, (44), 5 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-18 21:12:25,882 INFO L276 IsEmpty]: Start isEmpty. Operand 9756 states and 13452 transitions. [2022-11-18 21:12:25,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-18 21:12:25,886 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:12:25,886 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:12:25,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-18 21:12:26,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 21:12:26,088 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:12:26,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:12:26,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1491702651, now seen corresponding path program 2 times [2022-11-18 21:12:26,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:12:26,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077964801] [2022-11-18 21:12:26,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:12:26,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:12:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:12:28,013 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:12:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:12:29,176 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:12:29,176 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:12:29,177 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 21:12:29,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 21:12:29,182 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:12:29,187 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:12:29,243 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-18 21:12:29,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:12:29 BoogieIcfgContainer [2022-11-18 21:12:29,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:12:29,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:12:29,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:12:29,552 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:12:29,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:08:14" (3/4) ... [2022-11-18 21:12:29,556 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 21:12:29,556 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:12:29,556 INFO L158 Benchmark]: Toolchain (without parser) took 268304.02ms. Allocated memory was 104.9MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 64.6MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 242.9MB. Max. memory is 16.1GB. [2022-11-18 21:12:29,557 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:12:29,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2185.10ms. Allocated memory was 104.9MB in the beginning and 127.9MB in the end (delta: 23.1MB). Free memory was 64.3MB in the beginning and 59.4MB in the end (delta: 5.0MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2022-11-18 21:12:29,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 247.55ms. Allocated memory was 127.9MB in the beginning and 220.2MB in the end (delta: 92.3MB). Free memory was 59.4MB in the beginning and 152.6MB in the end (delta: -93.2MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2022-11-18 21:12:29,560 INFO L158 Benchmark]: Boogie Preprocessor took 263.08ms. Allocated memory is still 220.2MB. Free memory was 152.6MB in the beginning and 132.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-18 21:12:29,561 INFO L158 Benchmark]: RCFGBuilder took 10766.47ms. Allocated memory was 220.2MB in the beginning and 778.0MB in the end (delta: 557.8MB). Free memory was 132.7MB in the beginning and 626.7MB in the end (delta: -494.0MB). Peak memory consumption was 461.2MB. Max. memory is 16.1GB. [2022-11-18 21:12:29,561 INFO L158 Benchmark]: TraceAbstraction took 254830.75ms. Allocated memory was 778.0MB in the beginning and 1.8GB in the end (delta: 996.1MB). Free memory was 625.7MB in the beginning and 1.5GB in the end (delta: -866.5MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2022-11-18 21:12:29,563 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 1.8GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:12:29,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2185.10ms. Allocated memory was 104.9MB in the beginning and 127.9MB in the end (delta: 23.1MB). Free memory was 64.3MB in the beginning and 59.4MB in the end (delta: 5.0MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 247.55ms. Allocated memory was 127.9MB in the beginning and 220.2MB in the end (delta: 92.3MB). Free memory was 59.4MB in the beginning and 152.6MB in the end (delta: -93.2MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 263.08ms. Allocated memory is still 220.2MB. Free memory was 152.6MB in the beginning and 132.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * RCFGBuilder took 10766.47ms. Allocated memory was 220.2MB in the beginning and 778.0MB in the end (delta: 557.8MB). Free memory was 132.7MB in the beginning and 626.7MB in the end (delta: -494.0MB). Peak memory consumption was 461.2MB. Max. memory is 16.1GB. * TraceAbstraction took 254830.75ms. Allocated memory was 778.0MB in the beginning and 1.8GB in the end (delta: 996.1MB). Free memory was 625.7MB in the beginning and 1.5GB in the end (delta: -866.5MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 1.8GB. Free memory is still 1.5GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6294]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6616. Possible FailurePath: [L8437] int SERIAL_STATE = 0; [L6318] int LDV_IN_INTERRUPT = 1; [L7061] static char const p54u_firmware_upload_3887[3U] = { '<', '\r', '\000'}; [L6317] struct usb_interface *p54u_driver_group1 ; [L7035-L7036] static char const p54u_romboot_3887[5U] = { '~', '~', '~', '~', '\000'}; [L8440] struct usb_device *usb_dev = 0; [L8441] int dev_counter = 0; [L8445] void (*completeFnBulk)(struct urb * ) ; [L6319] int ref_cnt ; [L6616-L6619] static struct __anonstruct_p54u_fwlist_297 const p54u_fwlist[3U] = { {1280129078U, 1, "isl3886usb", {'I', 'S', 'L', '3', '8', '8', '6', ' ', '+', ' ', 'n', 'e', 't', '2', '2', '8', '0', '\000'}}, {1280129079U, 2, "isl3887usb", {'I', 'S', 'L', '3', '8', '8', '7', '\000'}}}; [L6321] int usb_counter ; [L8068-L8074] static struct usb_driver p54u_driver = {"p54usb", & p54u_probe, & p54u_disconnect, 0, & p54u_suspend, & p54u_resume, & p54u_resume, & p54u_pre_reset, & p54u_post_reset, (struct usb_device_id const *)(& p54u_table), {{{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, (unsigned char)0, 1U, 1U}; [L8439] struct urb *usb_urb = 0; [L6615] struct usb_device_id const __mod_usb_device_table ; [L8438] void *usb_intfdata = 0; [L8444] void (*completeFnInt)(struct urb * ) ; [L8090] int ldv_retval_0 ; [L8092] int ldv_retval_1 ; [L8096] int ldv_retval_2 ; [L8095] int ldv_retval_3 ; [L8091] int ldv_retval_4 ; [L8436] int INTERF_STATE = 0; [L8442] int completeFnIntCounter = 0; [L8443] int completeFnBulkCounter = 0; [L6322] int ldv_state_variable_0 ; [L6425-L6614] static struct usb_device_id p54u_table[64U] = { {3U, 1041U, 80U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1118U, 194U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1286U, 2577U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1653U, 1328U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1721U, 288U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1799U, 60934U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1962U, 28U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17665U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17666U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 21761U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16896U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16912U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16928U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2474U, 4096U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3064U, 4103U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3294U, 6U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3504U, 26662U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4219U, 22002U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4682U, 16419U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5173U, 528U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5545U, 2U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5680U, 5U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6189U, 2411U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6421U, 8756U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6421U, 8757U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14081U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14083U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14178U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 20545U, 8756U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 20545U, 8757U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1137U, 4656U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1293U, 28752U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1394U, 8192U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1394U, 8194U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1705U, 14U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1721U, 289U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1799U, 60947U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2051U, 17168U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17697U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17713U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 50433U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 62723U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16960U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2325U, 8192U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2325U, 8194U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2991U, 280U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3064U, 4105U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3294U, 8U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3294U, 21U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3470U, 14178U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4682U, 16421U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4704U, 60962U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5041U, 10U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5041U, 12U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5139U, 21504U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5173U, 1063U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5736U, 4176U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5952U, 4096U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14084U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14085U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 21779U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33026U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33028U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L6320] int ldv_state_variable_1 ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8108] struct usb_device_id *ldvarg1 ; [L8109] void *tmp ; [L8110] pm_message_t ldvarg0 ; [L8111] int tmp___0 ; [L8112] int tmp___1 ; [L8113] int tmp___2 ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldvarg0={47:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8115] CALL, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6259] void *p ; [L6260] void *tmp ; [L6261] int tmp___0 ; [L6263] tmp___0 = __VERIFIER_nondet_int() [L6264] COND TRUE tmp___0 != 0 [L6265] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=32, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, size=32, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8115] RET, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_zalloc(32UL)={0:0}, ldvarg0={47:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8115] tmp = ldv_zalloc(32UL) [L8116] ldvarg1 = (struct usb_device_id *)tmp [L8117] FCALL ldv_initialize() [L8118] FCALL memset((void *)(& ldvarg0), 0, 4UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldvarg0={47:0}, ldvarg1={0:0}, memset((void *)(& ldvarg0), 0, 4UL)={47:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8119] ldv_state_variable_1 = 0 [L8120] ref_cnt = 0 [L8121] ldv_state_variable_0 = 1 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8123] tmp___0 = __VERIFIER_nondet_int() [L8125] case 0: [L8191] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8192] COND TRUE ldv_state_variable_0 != 0 [L8193] tmp___2 = __VERIFIER_nondet_int() [L8195] case 0: [L8203] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8204] COND TRUE ldv_state_variable_0 == 1 [L8205] CALL, EXPR p54u_driver_init() [L8077] int tmp ; [L8079] CALL, EXPR ldv_usb_register_driver_30(& p54u_driver, & __this_module, "p54usb") [L8408] ldv_func_ret_type ldv_func_res ; [L8409] int tmp ; [L8411] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8821] return __VERIFIER_nondet_int(); [L8411] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8411] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8412] ldv_func_res = tmp [L8413] ldv_state_variable_1 = 1 [L8414] usb_counter = 0 [L8415] CALL ldv_usb_driver_1() [L8099] void *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8101] CALL, EXPR ldv_zalloc(1520UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6259] void *p ; [L6260] void *tmp ; [L6261] int tmp___0 ; [L6263] tmp___0 = __VERIFIER_nondet_int() [L6264] COND TRUE tmp___0 != 0 [L6265] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=1520, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, size=1520, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8101] RET, EXPR ldv_zalloc(1520UL) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_zalloc(1520UL)={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8101] tmp = ldv_zalloc(1520UL) [L8102] p54u_driver_group1 = (struct usb_interface *)tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8415] RET ldv_usb_driver_1() [L8416] return (ldv_func_res); VAL [={0:0}, ={0:0}, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={34:0}, ldv_func_arg1={34:0}, ldv_func_arg2={1280129170:1280129083}, ldv_func_arg2={1280129170:1280129083}, ldv_func_arg3={30:0}, ldv_func_arg3={30:0}, ldv_func_res=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8079] RET, EXPR ldv_usb_register_driver_30(& p54u_driver, & __this_module, "p54usb") [L8079] tmp = ldv_usb_register_driver_30(& p54u_driver, & __this_module, "p54usb") [L8080] return (tmp); VAL [={0:0}, ={0:0}, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8205] RET, EXPR p54u_driver_init() [L8205] ldv_retval_4 = p54u_driver_init() [L8206] COND TRUE ldv_retval_4 == 0 [L8207] ldv_state_variable_0 = 3 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8210] COND FALSE !(ldv_retval_4 != 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8123] tmp___0 = __VERIFIER_nondet_int() [L8125] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=0, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8126] COND TRUE ldv_state_variable_1 != 0 [L8127] tmp___1 = __VERIFIER_nondet_int() [L8129] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=0, tmp___1=0, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8130] COND TRUE ldv_state_variable_1 == 1 [L8131] CALL, EXPR p54u_probe(p54u_driver_group1, (struct usb_device_id const *)ldvarg1) [L7898] struct usb_device *udev ; [L7899] struct usb_device *tmp ; [L7900] struct ieee80211_hw *dev ; [L7901] struct p54u_priv *priv ; [L7902] int err ; [L7903] unsigned int i ; [L7904] unsigned int recognized_pipes ; [L7905] unsigned int tmp___0 ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7907] CALL, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8237] struct usb_device *tmp ; [L8239] CALL, EXPR ldv_interface_to_usbdev() [L8549] void *result ; [L8550] void *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8552] CALL, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6242] void *p ; [L6243] void *tmp ; [L6244] int tmp___0 ; [L6246] tmp___0 = __VERIFIER_nondet_int() [L6247] COND FALSE !(tmp___0 != 0) [L6250] tmp = malloc(size) [L6251] p = tmp VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551617:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6238] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551617:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6253] return (p); VAL [={0:0}, ={0:0}, \old(size)=1889, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551617:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8552] RET, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct usb_device))={-18446744073709551617:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8552] tmp = ldv_malloc(sizeof(struct usb_device)) [L8553] result = tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, result={-18446744073709551617:0}, SERIAL_STATE=0, tmp={-18446744073709551617:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8554] COND TRUE (unsigned long )result != (unsigned long )((void *)0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, result={-18446744073709551617:0}, SERIAL_STATE=0, tmp={-18446744073709551617:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8558] return (result); VAL [={0:0}, ={0:0}, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, result={-18446744073709551617:0}, SERIAL_STATE=0, tmp={-18446744073709551617:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8239] RET, EXPR ldv_interface_to_usbdev() [L8239] tmp = ldv_interface_to_usbdev() [L8240] return (tmp); VAL [={0:0}, ={0:0}, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7907] RET, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, id={0:0}, id={0:0}, INTERF_STATE=0, interface_to_usbdev(intf)={-18446744073709551617:0}, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7907] tmp = interface_to_usbdev(intf) [L7908] udev = tmp [L7909] CALL, EXPR p54_init_common(4592UL) [L8747] CALL, EXPR ldv_malloc(sizeof(struct ieee80211_hw)) VAL [={0:0}, ={0:0}, \old(size)=122, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6242] void *p ; [L6243] void *tmp ; [L6244] int tmp___0 ; [L6246] tmp___0 = __VERIFIER_nondet_int() [L6247] COND FALSE !(tmp___0 != 0) [L6250] tmp = malloc(size) [L6251] p = tmp VAL [={0:0}, ={0:0}, \old(size)=122, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-36893488147419103231:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, size=122, tmp={-36893488147419103231:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6238] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=122, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-36893488147419103231:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, size=122, tmp={-36893488147419103231:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6253] return (p); VAL [={0:0}, ={0:0}, \old(size)=122, \result={-36893488147419103231:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-36893488147419103231:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, size=122, tmp={-36893488147419103231:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8747] RET, EXPR ldv_malloc(sizeof(struct ieee80211_hw)) VAL [={0:0}, ={0:0}, \old(arg0)=4592, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, arg0=4592, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct ieee80211_hw))={-36893488147419103231:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8747] return ldv_malloc(sizeof(struct ieee80211_hw)); [L7909] RET, EXPR p54_init_common(4592UL) [L7909] dev = p54_init_common(4592UL) [L7910] COND FALSE !((unsigned long )dev == (unsigned long )((struct ieee80211_hw *)0)) [L7915] EXPR dev->priv [L7915] priv = (struct p54u_priv *)dev->priv [L7916] priv->hw_type = 0 [L7917] CALL SET_IEEE80211_DEV(dev, & intf->dev) [L6412] EXPR hw->wiphy [L6412] CALL set_wiphy_dev(hw->wiphy, dev) [L6405] wiphy->dev.parent = dev VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:44}, dev={0:44}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}, wiphy={-36893488147419103231:-168}, wiphy={-36893488147419103231:-168}] [L6412] RET set_wiphy_dev(hw->wiphy, dev) [L7917] RET SET_IEEE80211_DEV(dev, & intf->dev) [L7918] CALL ldv_usb_set_intfdata_23(intf, (void *)dev) [L8386] CALL ldv_usb_set_intfdata(data) [L8455] usb_intfdata = data VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-36893488147419103231:0}, data={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8386] RET ldv_usb_set_intfdata(data) [L7918] RET ldv_usb_set_intfdata_23(intf, (void *)dev) [L7919] priv->udev = udev [L7920] priv->intf = intf [L7921] CALL skb_queue_head_init(& priv->rx_queue) [L6348] struct lock_class_key __key ; VAL [={0:0}, ={0:0}, __key={49:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:-188}, list={-36893488147419103231:-188}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6350] CALL spinlock_check(& list->lock) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, lock={-36893488147419103231:-168}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6098] return (& lock->ldv_7686.rlock); VAL [={0:0}, ={0:0}, \result={-36893488147419103231:-168}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, lock={-36893488147419103231:-168}, lock={-36893488147419103231:-168}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6350] RET spinlock_check(& list->lock) VAL [={0:0}, ={0:0}, __key={49:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:-188}, list={-36893488147419103231:-188}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, spinlock_check(& list->lock)={-36893488147419103231:-168}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6351] FCALL __raw_spin_lock_init(& list->lock.ldv_7686.rlock, "&(&list->lock)->rlock", & __key) VAL [={0:0}, ={0:0}, __key={49:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:-188}, list={-36893488147419103231:-188}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6352] CALL __skb_queue_head_init(list) [L6337] struct sk_buff *tmp ; [L6339] tmp = (struct sk_buff *)list [L6340] list->next = tmp [L6341] list->prev = tmp [L6342] list->qlen = 0U VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:-188}, list={-36893488147419103231:-188}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-36893488147419103231:-188}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6352] RET __skb_queue_head_init(list) [L6353] return; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:-188}, list={-36893488147419103231:-188}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7921] RET skb_queue_head_init(& priv->rx_queue) [L7922] CALL init_usb_anchor(& priv->submitted) [L6155] struct lock_class_key __key ; [L6156] struct lock_class_key __key___0 ; [L6158] CALL INIT_LIST_HEAD(& anchor->urb_list) [L6089] list->next = list [L6090] list->prev = list VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, list={-36893488147419103231:-100}, list={-36893488147419103231:-100}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6158] RET INIT_LIST_HEAD(& anchor->urb_list) [L6159] FCALL __init_waitqueue_head(& anchor->wait, "&anchor->wait", & __key) VAL [={0:0}, ={0:0}, __key={68:0}, __key___0={69:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, anchor={-36893488147419103231:-100}, anchor={-36893488147419103231:-100}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6160] CALL spinlock_check(& anchor->lock) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, lock={-36893488147419103231:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6098] return (& lock->ldv_7686.rlock); VAL [={0:0}, ={0:0}, \result={-36893488147419103231:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, lock={-36893488147419103231:0}, lock={-36893488147419103231:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6160] RET spinlock_check(& anchor->lock) VAL [={0:0}, ={0:0}, __key={68:0}, __key___0={69:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, anchor={-36893488147419103231:-100}, anchor={-36893488147419103231:-100}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, spinlock_check(& anchor->lock)={-36893488147419103231:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6161] FCALL __raw_spin_lock_init(& anchor->lock.ldv_7686.rlock, "&(&anchor->lock)->rlock", & __key___0) VAL [={0:0}, ={0:0}, __key={68:0}, __key___0={69:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, anchor={-36893488147419103231:-100}, anchor={-36893488147419103231:-100}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6162] return; [L6162] return; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, anchor={-36893488147419103231:-100}, anchor={-36893488147419103231:-100}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7922] RET init_usb_anchor(& priv->submitted) [L7923] CALL ldv_usb_get_dev_24(udev) [L8392] struct usb_device *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={-18446744073709551617:0}, ldv_func_arg1={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8394] CALL, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551617:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8563] int tmp ; VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551617:0}, data={-18446744073709551617:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8565] COND TRUE (unsigned long )usb_dev == (unsigned long )((struct usb_device *)0) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551617:0}, data={-18446744073709551617:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] CALL, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6276] int tmp ; [L6278] tmp = __VERIFIER_nondet_int() [L6279] return (tmp); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] RET, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551617:0}, data={-18446744073709551617:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_undef_int()=0, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] tmp = ldv_undef_int() [L8567] COND FALSE !(\read(tmp)) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551617:0}, data={-18446744073709551617:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8577] return (usb_dev); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551617:0}, data={-18446744073709551617:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8394] RET, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={-18446744073709551617:0}, ldv_func_arg1={-18446744073709551617:0}, ldv_get_dev(ldv_func_arg1)={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8394] tmp = ldv_get_dev(ldv_func_arg1) [L8395] return (tmp); VAL [={0:0}, ={0:0}, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={-18446744073709551617:0}, ldv_func_arg1={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7923] RET ldv_usb_get_dev_24(udev) [L7924] EXPR intf->altsetting [L7924] EXPR (intf->altsetting)->desc.bNumEndpoints [L7924] i = (unsigned int )(intf->altsetting)->desc.bNumEndpoints [L7925] recognized_pipes = 0U VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev_counter=0, i=0, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={-36893488147419103231:-4080}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, udev={-18446744073709551617:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7941] tmp___0 = i [L7942] i = i - 1U VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev_counter=0, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={-36893488147419103231:-4080}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=0, udev={-18446744073709551617:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7943] COND FALSE !(tmp___0 != 0U) [L7947] priv->common.open = & p54u_open [L7948] priv->common.stop = & p54u_stop VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev_counter=0, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={-36893488147419103231:-4080}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=0, udev={-18446744073709551617:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7949] COND TRUE recognized_pipes <= 8U [L7950] udev->reset_resume = 1U [L7951] CALL, EXPR p54u_device_reset(dev) [L7006] struct p54u_priv *priv ; [L7007] int ret ; [L7008] int lock ; [L7010] EXPR dev->priv [L7010] priv = (struct p54u_priv *)dev->priv [L7011] EXPR priv->intf [L7011] EXPR (priv->intf)->condition [L7011] lock = (unsigned int )(priv->intf)->condition != 1U [L7012] COND TRUE lock != 0 [L7013] EXPR priv->udev [L7013] EXPR priv->intf [L7013] CALL, EXPR usb_lock_device_for_reset(priv->udev, (struct usb_interface const *)priv->intf) [L8817] return __VERIFIER_nondet_int(); [L7013] RET, EXPR usb_lock_device_for_reset(priv->udev, (struct usb_interface const *)priv->intf) [L7013] ret = usb_lock_device_for_reset(priv->udev, (struct usb_interface const *)priv->intf) [L7014] COND TRUE ret < 0 [L7015] priv->udev [L7017] return (ret); VAL [={0:0}, ={0:0}, \result=-1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, lock=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={0:44}, ref_cnt=0, ret=-1, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7951] RET, EXPR p54u_device_reset(dev) [L7951] err = p54u_device_reset(dev) [L7952] priv->hw_type = 2 [L7953] EXPR dev->extra_tx_headroom [L7953] dev->extra_tx_headroom = dev->extra_tx_headroom + 8U [L7954] priv->common.tx_hdr_len = 8U [L7955] priv->common.tx = & p54u_tx_lm87 [L7956] priv->upload_fw = & p54u_upload_firmware_3887 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev_counter=0, err=-1, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={-36893488147419103231:-4080}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=0, udev={-18446744073709551617:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7964] CALL, EXPR p54u_load_firmware(dev, intf) [L7866] struct usb_device *udev ; [L7867] struct usb_device *tmp ; [L7868] struct p54u_priv *priv ; [L7869] struct device *device ; [L7870] int err ; [L7871] int i ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7873] CALL, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8237] struct usb_device *tmp ; [L8239] CALL, EXPR ldv_interface_to_usbdev() [L8549] void *result ; [L8550] void *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8552] CALL, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6242] void *p ; [L6243] void *tmp ; [L6244] int tmp___0 ; [L6246] tmp___0 = __VERIFIER_nondet_int() [L6247] COND FALSE !(tmp___0 != 0) [L6250] tmp = malloc(size) [L6251] p = tmp VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551615:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6252] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6238] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6252] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551615:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6253] return (p); VAL [={0:0}, ={0:0}, \old(size)=1889, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551615:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8552] RET, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct usb_device))={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8552] tmp = ldv_malloc(sizeof(struct usb_device)) [L8553] result = tmp VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, result={-18446744073709551615:0}, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8554] COND TRUE (unsigned long )result != (unsigned long )((void *)0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, result={-18446744073709551615:0}, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8558] return (result); VAL [={0:0}, ={0:0}, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, result={-18446744073709551615:0}, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8239] RET, EXPR ldv_interface_to_usbdev() [L8239] tmp = ldv_interface_to_usbdev() [L8240] return (tmp); VAL [={0:0}, ={0:0}, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7873] RET, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=0, interface_to_usbdev(intf)={-18446744073709551615:0}, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7873] tmp = interface_to_usbdev(intf) [L7874] udev = tmp [L7875] EXPR dev->priv [L7875] priv = (struct p54u_priv *)dev->priv [L7876] device = & udev->dev [L7877] CALL init_completion(& priv->fw_wait_load) [L6106] struct lock_class_key __key ; [L6108] x->done = 0U VAL [={0:0}, ={0:0}, __key={45:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}, x={0:4201}, x={0:4201}] [L6109] FCALL __init_waitqueue_head(& x->wait, "&x->wait", & __key) VAL [={0:0}, ={0:0}, __key={45:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}, x={0:4201}, x={0:4201}] [L6110] return; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}, x={0:4201}, x={0:4201}] [L7877] RET init_completion(& priv->fw_wait_load) [L7878] CALL, EXPR p54_find_type(priv) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={0:44}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7753] int i ; [L7755] i = 0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={0:44}, priv={0:44}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7764] COND TRUE i <= 2 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={0:44}, priv={0:44}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7758] EXPR p54u_fwlist[i].type [L7758] EXPR priv->hw_type VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_fwlist[i].type=1, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={0:44}, priv={0:44}, priv->hw_type=1, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7758] COND TRUE (unsigned int )p54u_fwlist[i].type == (unsigned int )priv->hw_type [L7769] COND FALSE !(i == 3) [L7773] return (i); VAL [={0:0}, ={0:0}, \result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={0:44}, priv={0:44}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7878] RET, EXPR p54_find_type(priv) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev={-36893488147419103231:0}, dev_counter=0, device={-18446744073709551615:131}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54_find_type(priv)=0, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={0:44}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, udev={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7878] i = p54_find_type(priv) [L7879] COND FALSE !(i < 0) [L7883] priv->udev [L7884] p54u_fwlist[i].fw [L7885] CALL ldv_usb_get_dev_22(udev) [L8377] struct usb_device *tmp ; VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8379] CALL, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8563] int tmp ; VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8565] COND TRUE (unsigned long )usb_dev == (unsigned long )((struct usb_device *)0) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] CALL, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6276] int tmp ; [L6278] tmp = __VERIFIER_nondet_int() [L6279] return (tmp); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \result=71, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp=71, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] RET, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_undef_int()=71, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8566] tmp = ldv_undef_int() [L8567] COND TRUE \read(tmp) [L8568] dev_counter = dev_counter + 1 [L8569] usb_dev = data VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp=71, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8577] return (usb_dev); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp=71, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8379] RET, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, ldv_get_dev(ldv_func_arg1)={-18446744073709551615:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8379] tmp = ldv_get_dev(ldv_func_arg1) [L8380] return (tmp); VAL [={0:0}, ={0:0}, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7885] RET ldv_usb_get_dev_22(udev) [L7886] EXPR p54u_fwlist[i].fw [L7886-L7887] CALL, EXPR request_firmware_nowait(& __this_module, 1, p54u_fwlist[i].fw, device, 208U, (void *)priv, & p54u_load_firmware_cb) [L8773] return __VERIFIER_nondet_int(); [L7886-L7887] RET, EXPR request_firmware_nowait(& __this_module, 1, p54u_fwlist[i].fw, device, 208U, (void *)priv, & p54u_load_firmware_cb) [L7886-L7887] err = request_firmware_nowait(& __this_module, 1, p54u_fwlist[i].fw, device, 208U, (void *)priv, & p54u_load_firmware_cb) [L7888] COND TRUE err != 0 [L7889] priv->udev [L7890] p54u_fwlist[i].fw [L7893] return (err); VAL [={0:0}, ={0:0}, \result=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev={-36893488147419103231:0}, dev_counter=1, device={-18446744073709551615:131}, err=1, i=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={0:44}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, udev={-18446744073709551615:0}, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L7964] RET, EXPR p54u_load_firmware(dev, intf) [L7964] err = p54u_load_firmware(dev, intf) [L7965] return (err); VAL [={0:0}, ={0:0}, \result=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-36893488147419103231:0}, dev_counter=1, err=1, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, priv={-36893488147419103231:-4080}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551617:0}, tmp___0=0, udev={-18446744073709551617:0}, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8131] RET, EXPR p54u_probe(p54u_driver_group1, (struct usb_device_id const *)ldvarg1) [L8131] ldv_retval_3 = p54u_probe(p54u_driver_group1, (struct usb_device_id const *)ldvarg1) [L8132] COND FALSE !(ldv_retval_3 == 0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=0, tmp___1=0, tmp___2=1, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8123] tmp___0 = __VERIFIER_nondet_int() [L8125] case 0: [L8191] case 1: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___1=0, tmp___2=1, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8192] COND TRUE ldv_state_variable_0 != 0 [L8193] tmp___2 = __VERIFIER_nondet_int() [L8195] case 0: VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___1=0, tmp___2=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8196] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L8197] CALL p54u_driver_exit() [L8086] CALL ldv_usb_deregister_31(& p54u_driver) [L8422] FCALL usb_deregister(arg) [L8423] ldv_state_variable_1 = 0 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, arg={34:0}, arg={34:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=0, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8086] RET ldv_usb_deregister_31(& p54u_driver) [L8197] RET p54u_driver_exit() [L8198] ldv_state_variable_0 = 2 VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___1=0, tmp___2=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8231] CALL ldv_check_final_state() [L8655] COND TRUE (unsigned long )usb_urb == (unsigned long )((struct urb *)0) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8659] COND FALSE !((unsigned long )usb_dev == (unsigned long )((struct usb_device *)0)) VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L8661] CALL ldv_error() VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] [L6294] reach_error() VAL [={0:0}, ={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={1280129170:1280129083}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={34:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={31:0}, p54u_fwlist={33:0}, p54u_romboot_3887={32:0}, p54u_table={35:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-36893488147419103231:0}, usb_urb={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 56 procedures, 836 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 254.4s, OverallIterations: 21, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 185.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 49 mSolverCounterUnknown, 33805 SdHoareTripleChecker+Valid, 162.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31953 mSDsluCounter, 78675 SdHoareTripleChecker+Invalid, 153.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57684 mSDsCounter, 16152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30861 IncrementalHoareTripleChecker+Invalid, 47062 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16152 mSolverCounterUnsat, 20991 mSDtfsCounter, 30861 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2441 GetRequests, 2230 SyntacticMatches, 2 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9756occurred in iteration=20, InterpolantAutomatonStates: 174, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 16.0s AutomataMinimizationTime, 20 MinimizatonAttempts, 42129 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 24.6s SatisfiabilityAnalysisTime, 17.3s InterpolantComputationTime, 4061 NumberOfCodeBlocks, 4061 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 4187 ConstructedInterpolants, 0 QuantifiedInterpolants, 7880 SizeOfPredicates, 17 NumberOfNonLiveVariables, 29386 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 30 InterpolantComputations, 18 PerfectInterpolantSequences, 1180/1237 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 21:12:29,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:12:31,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:12:31,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:12:31,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:12:31,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:12:31,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:12:31,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:12:31,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:12:31,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:12:31,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:12:31,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:12:31,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:12:31,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:12:31,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:12:31,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:12:31,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:12:31,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:12:31,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:12:31,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:12:31,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:12:31,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:12:31,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:12:32,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:12:32,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:12:32,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:12:32,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:12:32,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:12:32,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:12:32,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:12:32,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:12:32,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:12:32,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:12:32,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:12:32,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:12:32,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:12:32,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:12:32,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:12:32,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:12:32,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:12:32,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:12:32,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:12:32,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 21:12:32,044 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:12:32,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:12:32,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:12:32,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:12:32,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:12:32,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:12:32,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:12:32,048 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:12:32,048 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:12:32,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:12:32,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:12:32,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:12:32,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:12:32,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:12:32,050 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 21:12:32,051 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 21:12:32,051 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 21:12:32,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:12:32,052 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:12:32,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:12:32,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:12:32,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:12:32,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:12:32,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:12:32,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:12:32,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:12:32,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:12:32,055 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 21:12:32,055 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 21:12:32,056 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:12:32,056 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:12:32,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:12:32,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 21:12:32,057 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c [2022-11-18 21:12:32,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:12:32,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:12:32,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:12:32,511 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:12:32,520 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:12:32,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-18 21:12:32,613 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/data/7c6173bcd/78843e06a1e24b3491ce0a03a8c47b36/FLAGe7ac7740d [2022-11-18 21:12:33,477 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:12:33,478 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-18 21:12:33,537 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/data/7c6173bcd/78843e06a1e24b3491ce0a03a8c47b36/FLAGe7ac7740d [2022-11-18 21:12:33,987 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/data/7c6173bcd/78843e06a1e24b3491ce0a03a8c47b36 [2022-11-18 21:12:33,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:12:33,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:12:33,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:12:33,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:12:34,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:12:34,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:12:33" (1/1) ... [2022-11-18 21:12:34,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@474f2f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:34, skipping insertion in model container [2022-11-18 21:12:34,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:12:33" (1/1) ... [2022-11-18 21:12:34,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:12:34,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:12:35,224 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2022-11-18 21:12:35,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:12:35,923 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 21:12:35,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:12:36,212 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2022-11-18 21:12:36,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:12:36,354 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:12:36,543 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2022-11-18 21:12:36,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:12:36,893 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:12:36,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36 WrapperNode [2022-11-18 21:12:36,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:12:36,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:12:36,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:12:36,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:12:36,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (1/1) ... [2022-11-18 21:12:37,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (1/1) ... [2022-11-18 21:12:37,225 INFO L138 Inliner]: procedures = 198, calls = 1615, calls flagged for inlining = 84, calls inlined = 65, statements flattened = 2825 [2022-11-18 21:12:37,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:12:37,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:12:37,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:12:37,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:12:37,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (1/1) ... [2022-11-18 21:12:37,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (1/1) ... [2022-11-18 21:12:37,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (1/1) ... [2022-11-18 21:12:37,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (1/1) ... [2022-11-18 21:12:37,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (1/1) ... [2022-11-18 21:12:37,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (1/1) ... [2022-11-18 21:12:37,498 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (1/1) ... [2022-11-18 21:12:37,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (1/1) ... [2022-11-18 21:12:37,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:12:37,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:12:37,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:12:37,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:12:37,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (1/1) ... [2022-11-18 21:12:37,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:12:37,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:12:37,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:12:37,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:12:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-18 21:12:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-18 21:12:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-18 21:12:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 21:12:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-18 21:12:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 21:12:37,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 21:12:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 21:12:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-18 21:12:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-18 21:12:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-18 21:12:37,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-18 21:12:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2022-11-18 21:12:37,635 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2022-11-18 21:12:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 21:12:37,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 21:12:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-18 21:12:37,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-18 21:12:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2022-11-18 21:12:37,636 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2022-11-18 21:12:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_skb [2022-11-18 21:12:37,637 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_skb [2022-11-18 21:12:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 21:12:37,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 21:12:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 21:12:37,637 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 21:12:37,638 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 21:12:37,638 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 21:12:37,638 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-18 21:12:37,638 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-18 21:12:37,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-18 21:12:37,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-18 21:12:37,639 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 21:12:37,639 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 21:12:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:12:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-18 21:12:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 21:12:37,640 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2022-11-18 21:12:37,640 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2022-11-18 21:12:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-18 21:12:37,641 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-18 21:12:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2022-11-18 21:12:37,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2022-11-18 21:12:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-18 21:12:37,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-18 21:12:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:12:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 21:12:37,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 21:12:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-18 21:12:37,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 21:12:37,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-18 21:12:37,645 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2022-11-18 21:12:37,645 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2022-11-18 21:12:37,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-18 21:12:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 21:12:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 21:12:37,647 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-18 21:12:37,647 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-18 21:12:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2022-11-18 21:12:37,648 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2022-11-18 21:12:37,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 21:12:37,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 21:12:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-18 21:12:37,649 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-18 21:12:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 21:12:37,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 21:12:37,649 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2022-11-18 21:12:37,650 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2022-11-18 21:12:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_5 [2022-11-18 21:12:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_5 [2022-11-18 21:12:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-11-18 21:12:37,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-11-18 21:12:37,651 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-18 21:12:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-18 21:12:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 21:12:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 21:12:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-18 21:12:37,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-18 21:12:37,652 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-18 21:12:37,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-18 21:12:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 21:12:37,653 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 21:12:37,653 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-18 21:12:37,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-18 21:12:37,654 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-18 21:12:37,655 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-18 21:12:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-18 21:12:37,655 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2022-11-18 21:12:37,655 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2022-11-18 21:12:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-18 21:12:37,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-18 21:12:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-18 21:12:37,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 21:12:37,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 21:12:37,658 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_rx_cb [2022-11-18 21:12:37,658 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_rx_cb [2022-11-18 21:12:37,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 21:12:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2022-11-18 21:12:37,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2022-11-18 21:12:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:12:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2022-11-18 21:12:37,659 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2022-11-18 21:12:37,659 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2022-11-18 21:12:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2022-11-18 21:12:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-18 21:12:37,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-18 21:12:37,660 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 21:12:37,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 21:12:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 21:12:37,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-18 21:12:37,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2022-11-18 21:12:37,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2022-11-18 21:12:37,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-18 21:12:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 21:12:37,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 21:12:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-18 21:12:37,666 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2022-11-18 21:12:37,668 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2022-11-18 21:12:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-18 21:12:37,669 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-18 21:12:37,669 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2022-11-18 21:12:37,676 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2022-11-18 21:12:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2022-11-18 21:12:37,676 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2022-11-18 21:12:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-18 21:12:37,676 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-18 21:12:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-18 21:12:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-18 21:12:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2022-11-18 21:12:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2022-11-18 21:12:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-18 21:12:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-18 21:12:37,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-18 21:12:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-18 21:12:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-18 21:12:37,678 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-18 21:12:37,678 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-18 21:12:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-18 21:12:37,683 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-18 21:12:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:12:37,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:12:38,400 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:12:38,406 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:12:39,697 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 21:12:45,615 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-18 21:13:03,222 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:13:03,240 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:13:03,241 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:13:03,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:13:03 BoogieIcfgContainer [2022-11-18 21:13:03,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:13:03,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:13:03,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:13:03,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:13:03,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:12:33" (1/3) ... [2022-11-18 21:13:03,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27958eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:13:03, skipping insertion in model container [2022-11-18 21:13:03,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:12:36" (2/3) ... [2022-11-18 21:13:03,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27958eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:13:03, skipping insertion in model container [2022-11-18 21:13:03,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:13:03" (3/3) ... [2022-11-18 21:13:03,261 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2022-11-18 21:13:03,282 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:13:03,282 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:13:03,372 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:13:03,379 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2493dd6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:13:03,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:13:03,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 830 states, 585 states have (on average 1.3452991452991454) internal successors, (787), 611 states have internal predecessors, (787), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) [2022-11-18 21:13:03,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 21:13:03,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:03,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:03,400 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:03,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:03,406 INFO L85 PathProgramCache]: Analyzing trace with hash -379709077, now seen corresponding path program 1 times [2022-11-18 21:13:03,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:03,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667471861] [2022-11-18 21:13:03,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:03,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:03,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:03,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:03,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 21:13:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:05,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 2191 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 21:13:05,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:05,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:13:05,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:05,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:05,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667471861] [2022-11-18 21:13:05,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1667471861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:05,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:05,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:13:05,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116015920] [2022-11-18 21:13:05,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:05,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:13:05,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:05,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:13:05,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:13:05,295 INFO L87 Difference]: Start difference. First operand has 830 states, 585 states have (on average 1.3452991452991454) internal successors, (787), 611 states have internal predecessors, (787), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 21:13:05,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:05,682 INFO L93 Difference]: Finished difference Result 1658 states and 2365 transitions. [2022-11-18 21:13:05,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:13:05,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-18 21:13:05,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:05,715 INFO L225 Difference]: With dead ends: 1658 [2022-11-18 21:13:05,716 INFO L226 Difference]: Without dead ends: 818 [2022-11-18 21:13:05,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:13:05,737 INFO L413 NwaCegarLoop]: 1151 mSDtfsCounter, 2 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3451 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:05,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3451 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:13:05,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-11-18 21:13:05,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2022-11-18 21:13:05,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 580 states have (on average 1.3327586206896551) internal successors, (773), 599 states have internal predecessors, (773), 185 states have call successors, (185), 53 states have call predecessors, (185), 52 states have return successors, (180), 177 states have call predecessors, (180), 180 states have call successors, (180) [2022-11-18 21:13:05,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1138 transitions. [2022-11-18 21:13:05,899 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1138 transitions. Word has length 28 [2022-11-18 21:13:05,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:05,902 INFO L495 AbstractCegarLoop]: Abstraction has 818 states and 1138 transitions. [2022-11-18 21:13:05,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 21:13:05,902 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1138 transitions. [2022-11-18 21:13:05,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 21:13:05,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:05,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:05,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-18 21:13:06,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:06,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:06,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:06,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1230635498, now seen corresponding path program 1 times [2022-11-18 21:13:06,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:06,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074690275] [2022-11-18 21:13:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:06,137 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:06,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:06,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:06,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 21:13:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:07,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 2202 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 21:13:07,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:13:08,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:13:08,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:13:08,748 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:08,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074690275] [2022-11-18 21:13:08,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1074690275] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:13:08,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 21:13:08,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 21:13:08,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238563761] [2022-11-18 21:13:08,749 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 21:13:08,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:13:08,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:08,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:13:08,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:13:08,752 INFO L87 Difference]: Start difference. First operand 818 states and 1138 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:09,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:09,450 INFO L93 Difference]: Finished difference Result 1632 states and 2273 transitions. [2022-11-18 21:13:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 21:13:09,451 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2022-11-18 21:13:09,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:09,459 INFO L225 Difference]: With dead ends: 1632 [2022-11-18 21:13:09,459 INFO L226 Difference]: Without dead ends: 821 [2022-11-18 21:13:09,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:13:09,470 INFO L413 NwaCegarLoop]: 1135 mSDtfsCounter, 11 mSDsluCounter, 2271 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:09,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3406 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:13:09,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2022-11-18 21:13:09,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 821. [2022-11-18 21:13:09,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 583 states have (on average 1.3310463121783878) internal successors, (776), 602 states have internal predecessors, (776), 185 states have call successors, (185), 53 states have call predecessors, (185), 52 states have return successors, (180), 177 states have call predecessors, (180), 180 states have call successors, (180) [2022-11-18 21:13:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1141 transitions. [2022-11-18 21:13:09,516 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1141 transitions. Word has length 29 [2022-11-18 21:13:09,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:09,517 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 1141 transitions. [2022-11-18 21:13:09,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:09,517 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1141 transitions. [2022-11-18 21:13:09,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 21:13:09,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:09,519 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:09,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 21:13:09,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:09,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:09,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:09,744 INFO L85 PathProgramCache]: Analyzing trace with hash -293114837, now seen corresponding path program 2 times [2022-11-18 21:13:09,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:09,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088092120] [2022-11-18 21:13:09,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:13:09,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:09,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:09,749 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:09,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 21:13:11,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 21:13:11,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:13:11,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 2191 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:13:11,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:11,353 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 21:13:11,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:11,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:11,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088092120] [2022-11-18 21:13:11,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088092120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:11,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:11,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:13:11,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971092995] [2022-11-18 21:13:11,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:11,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:13:11,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:11,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:13:11,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:11,356 INFO L87 Difference]: Start difference. First operand 821 states and 1141 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 21:13:13,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:13:13,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:13,936 INFO L93 Difference]: Finished difference Result 2410 states and 3361 transitions. [2022-11-18 21:13:13,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:13:13,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-11-18 21:13:13,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:13,946 INFO L225 Difference]: With dead ends: 2410 [2022-11-18 21:13:13,946 INFO L226 Difference]: Without dead ends: 1604 [2022-11-18 21:13:13,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:13,953 INFO L413 NwaCegarLoop]: 1323 mSDtfsCounter, 1095 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 2441 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:13,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 2441 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-11-18 21:13:13,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-11-18 21:13:14,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2022-11-18 21:13:14,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1138 states have (on average 1.3312829525483305) internal successors, (1515), 1172 states have internal predecessors, (1515), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2022-11-18 21:13:14,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2234 transitions. [2022-11-18 21:13:14,122 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2234 transitions. Word has length 32 [2022-11-18 21:13:14,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:14,123 INFO L495 AbstractCegarLoop]: Abstraction has 1604 states and 2234 transitions. [2022-11-18 21:13:14,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 21:13:14,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2234 transitions. [2022-11-18 21:13:14,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 21:13:14,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:14,132 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:14,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 21:13:14,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:14,347 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:14,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:14,348 INFO L85 PathProgramCache]: Analyzing trace with hash -84618737, now seen corresponding path program 1 times [2022-11-18 21:13:14,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:14,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [809134336] [2022-11-18 21:13:14,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:14,350 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:14,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:14,351 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:14,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 21:13:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:15,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 2280 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:13:15,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:15,943 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 21:13:15,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:15,943 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:15,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [809134336] [2022-11-18 21:13:15,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [809134336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:15,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:15,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:13:15,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912250366] [2022-11-18 21:13:15,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:15,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:13:15,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:15,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:13:15,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:15,946 INFO L87 Difference]: Start difference. First operand 1604 states and 2234 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:16,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:16,312 INFO L93 Difference]: Finished difference Result 1630 states and 2266 transitions. [2022-11-18 21:13:16,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:13:16,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-11-18 21:13:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:16,329 INFO L225 Difference]: With dead ends: 1630 [2022-11-18 21:13:16,329 INFO L226 Difference]: Without dead ends: 1617 [2022-11-18 21:13:16,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:16,333 INFO L413 NwaCegarLoop]: 1152 mSDtfsCounter, 1132 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:16,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 1168 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:13:16,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-11-18 21:13:16,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1604. [2022-11-18 21:13:16,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1138 states have (on average 1.3304042179261863) internal successors, (1514), 1172 states have internal predecessors, (1514), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2022-11-18 21:13:16,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2233 transitions. [2022-11-18 21:13:16,451 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2233 transitions. Word has length 42 [2022-11-18 21:13:16,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:16,454 INFO L495 AbstractCegarLoop]: Abstraction has 1604 states and 2233 transitions. [2022-11-18 21:13:16,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:16,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2233 transitions. [2022-11-18 21:13:16,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-18 21:13:16,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:16,456 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:16,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 21:13:16,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:16,674 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:16,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:16,675 INFO L85 PathProgramCache]: Analyzing trace with hash -27360435, now seen corresponding path program 1 times [2022-11-18 21:13:16,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:16,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487512081] [2022-11-18 21:13:16,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:16,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:16,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:16,678 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:16,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 21:13:18,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:18,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 2279 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 21:13:18,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:20,223 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 21:13:20,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:20,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:20,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487512081] [2022-11-18 21:13:20,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487512081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:20,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:20,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:13:20,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227344779] [2022-11-18 21:13:20,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:20,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:13:20,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:20,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:13:20,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:20,227 INFO L87 Difference]: Start difference. First operand 1604 states and 2233 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:20,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:20,797 INFO L93 Difference]: Finished difference Result 4767 states and 6714 transitions. [2022-11-18 21:13:20,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:13:20,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-11-18 21:13:20,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:20,837 INFO L225 Difference]: With dead ends: 4767 [2022-11-18 21:13:20,837 INFO L226 Difference]: Without dead ends: 3185 [2022-11-18 21:13:20,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:20,849 INFO L413 NwaCegarLoop]: 1461 mSDtfsCounter, 1109 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:20,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 2583 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:13:20,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2022-11-18 21:13:21,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3175. [2022-11-18 21:13:21,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3175 states, 2254 states have (on average 1.3300798580301685) internal successors, (2998), 2318 states have internal predecessors, (2998), 716 states have call successors, (716), 205 states have call predecessors, (716), 204 states have return successors, (745), 699 states have call predecessors, (745), 711 states have call successors, (745) [2022-11-18 21:13:21,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3175 states to 3175 states and 4459 transitions. [2022-11-18 21:13:21,143 INFO L78 Accepts]: Start accepts. Automaton has 3175 states and 4459 transitions. Word has length 42 [2022-11-18 21:13:21,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:21,144 INFO L495 AbstractCegarLoop]: Abstraction has 3175 states and 4459 transitions. [2022-11-18 21:13:21,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:21,144 INFO L276 IsEmpty]: Start isEmpty. Operand 3175 states and 4459 transitions. [2022-11-18 21:13:21,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-18 21:13:21,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:21,146 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:21,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 21:13:21,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:21,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:21,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:21,359 INFO L85 PathProgramCache]: Analyzing trace with hash -848585938, now seen corresponding path program 1 times [2022-11-18 21:13:21,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:21,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368144611] [2022-11-18 21:13:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:21,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:21,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:21,365 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:21,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 21:13:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:22,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 2280 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 21:13:22,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:24,827 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 21:13:24,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:24,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:24,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368144611] [2022-11-18 21:13:24,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368144611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:24,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:24,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:13:24,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524163401] [2022-11-18 21:13:24,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:24,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:13:24,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:24,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:13:24,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:24,830 INFO L87 Difference]: Start difference. First operand 3175 states and 4459 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:25,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:25,669 INFO L93 Difference]: Finished difference Result 9472 states and 13598 transitions. [2022-11-18 21:13:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:13:25,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2022-11-18 21:13:25,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:25,715 INFO L225 Difference]: With dead ends: 9472 [2022-11-18 21:13:25,715 INFO L226 Difference]: Without dead ends: 6319 [2022-11-18 21:13:25,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:25,734 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 1111 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:25,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1111 Valid, 2527 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 21:13:25,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6319 states. [2022-11-18 21:13:26,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6319 to 6310. [2022-11-18 21:13:26,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 4479 states have (on average 1.3275284661754856) internal successors, (5946), 4603 states have internal predecessors, (5946), 1424 states have call successors, (1424), 407 states have call predecessors, (1424), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2022-11-18 21:13:26,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 8961 transitions. [2022-11-18 21:13:26,313 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 8961 transitions. Word has length 43 [2022-11-18 21:13:26,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:26,314 INFO L495 AbstractCegarLoop]: Abstraction has 6310 states and 8961 transitions. [2022-11-18 21:13:26,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:26,314 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 8961 transitions. [2022-11-18 21:13:26,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 21:13:26,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:26,317 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:26,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-18 21:13:26,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:26,539 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:26,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:26,539 INFO L85 PathProgramCache]: Analyzing trace with hash -536767888, now seen corresponding path program 1 times [2022-11-18 21:13:26,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:26,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277865172] [2022-11-18 21:13:26,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:26,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:26,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:26,545 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:26,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-18 21:13:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:28,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 2281 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:13:28,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:29,030 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 21:13:29,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:29,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:29,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277865172] [2022-11-18 21:13:29,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277865172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:29,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:29,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:13:29,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206325685] [2022-11-18 21:13:29,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:29,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:13:29,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:29,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:13:29,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:29,033 INFO L87 Difference]: Start difference. First operand 6310 states and 8961 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:29,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:29,618 INFO L93 Difference]: Finished difference Result 6317 states and 8967 transitions. [2022-11-18 21:13:29,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:13:29,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-11-18 21:13:29,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:29,661 INFO L225 Difference]: With dead ends: 6317 [2022-11-18 21:13:29,661 INFO L226 Difference]: Without dead ends: 6314 [2022-11-18 21:13:29,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:29,670 INFO L413 NwaCegarLoop]: 1414 mSDtfsCounter, 1108 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:29,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1108 Valid, 2528 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:13:29,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6314 states. [2022-11-18 21:13:30,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6314 to 6311. [2022-11-18 21:13:30,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6311 states, 4480 states have (on average 1.3274553571428571) internal successors, (5947), 4604 states have internal predecessors, (5947), 1424 states have call successors, (1424), 407 states have call predecessors, (1424), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2022-11-18 21:13:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 8962 transitions. [2022-11-18 21:13:30,236 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 8962 transitions. Word has length 44 [2022-11-18 21:13:30,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:30,236 INFO L495 AbstractCegarLoop]: Abstraction has 6311 states and 8962 transitions. [2022-11-18 21:13:30,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:30,238 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 8962 transitions. [2022-11-18 21:13:30,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 21:13:30,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:30,239 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:30,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-18 21:13:30,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:30,454 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:30,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:30,454 INFO L85 PathProgramCache]: Analyzing trace with hash 539661937, now seen corresponding path program 1 times [2022-11-18 21:13:30,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:30,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298308903] [2022-11-18 21:13:30,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:30,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:30,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:30,461 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:30,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-18 21:13:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:32,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 2282 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:13:32,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:33,211 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 21:13:33,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:33,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:33,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298308903] [2022-11-18 21:13:33,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298308903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:33,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:33,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:13:33,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855245326] [2022-11-18 21:13:33,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:33,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:13:33,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:33,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:13:33,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:33,214 INFO L87 Difference]: Start difference. First operand 6311 states and 8962 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:33,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:33,827 INFO L93 Difference]: Finished difference Result 6313 states and 8963 transitions. [2022-11-18 21:13:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:13:33,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-11-18 21:13:33,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:33,881 INFO L225 Difference]: With dead ends: 6313 [2022-11-18 21:13:33,882 INFO L226 Difference]: Without dead ends: 6310 [2022-11-18 21:13:33,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:33,889 INFO L413 NwaCegarLoop]: 1134 mSDtfsCounter, 1099 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:33,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1099 Valid, 1134 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:13:33,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6310 states. [2022-11-18 21:13:34,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6310 to 6310. [2022-11-18 21:13:34,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6310 states, 4480 states have (on average 1.3272321428571427) internal successors, (5946), 4603 states have internal predecessors, (5946), 1423 states have call successors, (1423), 407 states have call predecessors, (1423), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2022-11-18 21:13:34,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6310 states to 6310 states and 8960 transitions. [2022-11-18 21:13:34,537 INFO L78 Accepts]: Start accepts. Automaton has 6310 states and 8960 transitions. Word has length 45 [2022-11-18 21:13:34,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:34,537 INFO L495 AbstractCegarLoop]: Abstraction has 6310 states and 8960 transitions. [2022-11-18 21:13:34,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:34,538 INFO L276 IsEmpty]: Start isEmpty. Operand 6310 states and 8960 transitions. [2022-11-18 21:13:34,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-18 21:13:34,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:34,539 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:34,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-18 21:13:34,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:34,767 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:34,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:34,767 INFO L85 PathProgramCache]: Analyzing trace with hash -450746989, now seen corresponding path program 1 times [2022-11-18 21:13:34,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:34,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382517005] [2022-11-18 21:13:34,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:34,770 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:34,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:34,771 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:34,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-18 21:13:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:36,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 2283 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:13:36,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:37,329 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 21:13:37,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:37,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:37,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382517005] [2022-11-18 21:13:37,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1382517005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:37,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:37,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:13:37,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134967916] [2022-11-18 21:13:37,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:37,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:13:37,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:37,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:13:37,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:37,333 INFO L87 Difference]: Start difference. First operand 6310 states and 8960 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:37,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:37,819 INFO L93 Difference]: Finished difference Result 6312 states and 8961 transitions. [2022-11-18 21:13:37,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:13:37,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2022-11-18 21:13:37,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:37,850 INFO L225 Difference]: With dead ends: 6312 [2022-11-18 21:13:37,851 INFO L226 Difference]: Without dead ends: 6300 [2022-11-18 21:13:37,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:37,859 INFO L413 NwaCegarLoop]: 1133 mSDtfsCounter, 1096 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:37,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:13:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6300 states. [2022-11-18 21:13:38,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6300 to 6300. [2022-11-18 21:13:38,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6300 states, 4471 states have (on average 1.326996197718631) internal successors, (5933), 4593 states have internal predecessors, (5933), 1422 states have call successors, (1422), 407 states have call predecessors, (1422), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2022-11-18 21:13:38,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6300 states to 6300 states and 8946 transitions. [2022-11-18 21:13:38,468 INFO L78 Accepts]: Start accepts. Automaton has 6300 states and 8946 transitions. Word has length 46 [2022-11-18 21:13:38,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:38,469 INFO L495 AbstractCegarLoop]: Abstraction has 6300 states and 8946 transitions. [2022-11-18 21:13:38,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-18 21:13:38,469 INFO L276 IsEmpty]: Start isEmpty. Operand 6300 states and 8946 transitions. [2022-11-18 21:13:38,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-18 21:13:38,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:38,477 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:38,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-18 21:13:38,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:38,691 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:38,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:38,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1608963911, now seen corresponding path program 1 times [2022-11-18 21:13:38,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:38,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966587787] [2022-11-18 21:13:38,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:38,695 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:38,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:38,701 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:38,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-18 21:13:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:40,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 2617 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:13:40,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:40,829 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-18 21:13:40,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:40,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:40,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966587787] [2022-11-18 21:13:40,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [966587787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:40,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:40,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:13:40,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880664471] [2022-11-18 21:13:40,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:40,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:13:40,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:40,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:13:40,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:40,833 INFO L87 Difference]: Start difference. First operand 6300 states and 8946 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-18 21:13:41,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:41,921 INFO L93 Difference]: Finished difference Result 12706 states and 18046 transitions. [2022-11-18 21:13:41,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:13:41,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2022-11-18 21:13:41,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:41,963 INFO L225 Difference]: With dead ends: 12706 [2022-11-18 21:13:41,963 INFO L226 Difference]: Without dead ends: 6428 [2022-11-18 21:13:41,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:41,995 INFO L413 NwaCegarLoop]: 1135 mSDtfsCounter, 52 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:41,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 2229 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 21:13:42,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6428 states. [2022-11-18 21:13:42,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6428 to 6404. [2022-11-18 21:13:42,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6404 states, 4574 states have (on average 1.3290336685614341) internal successors, (6079), 4696 states have internal predecessors, (6079), 1422 states have call successors, (1422), 408 states have call predecessors, (1422), 407 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2022-11-18 21:13:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6404 states to 6404 states and 9092 transitions. [2022-11-18 21:13:42,662 INFO L78 Accepts]: Start accepts. Automaton has 6404 states and 9092 transitions. Word has length 144 [2022-11-18 21:13:42,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:42,664 INFO L495 AbstractCegarLoop]: Abstraction has 6404 states and 9092 transitions. [2022-11-18 21:13:42,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-18 21:13:42,664 INFO L276 IsEmpty]: Start isEmpty. Operand 6404 states and 9092 transitions. [2022-11-18 21:13:42,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-18 21:13:42,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:42,672 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:42,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-18 21:13:42,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:42,887 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:42,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:42,888 INFO L85 PathProgramCache]: Analyzing trace with hash 586713842, now seen corresponding path program 1 times [2022-11-18 21:13:42,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:42,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228822349] [2022-11-18 21:13:42,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:42,892 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:42,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:42,895 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:42,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-18 21:13:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:44,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 2644 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:13:44,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:45,253 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-18 21:13:45,254 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:45,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:45,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228822349] [2022-11-18 21:13:45,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228822349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:45,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:45,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:13:45,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011640302] [2022-11-18 21:13:45,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:45,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:13:45,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:45,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:13:45,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:45,257 INFO L87 Difference]: Start difference. First operand 6404 states and 9092 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-18 21:13:47,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:13:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:48,673 INFO L93 Difference]: Finished difference Result 13178 states and 18684 transitions. [2022-11-18 21:13:48,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:13:48,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 156 [2022-11-18 21:13:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:48,709 INFO L225 Difference]: With dead ends: 13178 [2022-11-18 21:13:48,710 INFO L226 Difference]: Without dead ends: 6800 [2022-11-18 21:13:48,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:13:48,742 INFO L413 NwaCegarLoop]: 1164 mSDtfsCounter, 205 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 2123 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:48,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 2123 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-18 21:13:48,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6800 states. [2022-11-18 21:13:49,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6800 to 6776. [2022-11-18 21:13:49,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6776 states, 4898 states have (on average 1.3258472846059617) internal successors, (6494), 5020 states have internal predecessors, (6494), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 439 states have return successors, (1607), 1411 states have call predecessors, (1607), 1435 states have call successors, (1607) [2022-11-18 21:13:49,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6776 states to 6776 states and 9539 transitions. [2022-11-18 21:13:49,287 INFO L78 Accepts]: Start accepts. Automaton has 6776 states and 9539 transitions. Word has length 156 [2022-11-18 21:13:49,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:49,287 INFO L495 AbstractCegarLoop]: Abstraction has 6776 states and 9539 transitions. [2022-11-18 21:13:49,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-18 21:13:49,288 INFO L276 IsEmpty]: Start isEmpty. Operand 6776 states and 9539 transitions. [2022-11-18 21:13:49,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-18 21:13:49,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:49,294 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:49,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-18 21:13:49,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:49,511 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:49,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:49,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1310333478, now seen corresponding path program 1 times [2022-11-18 21:13:49,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:49,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361146859] [2022-11-18 21:13:49,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:49,515 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:49,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:49,517 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:49,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-18 21:13:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:51,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 2918 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 21:13:51,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:52,377 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 21:13:52,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:52,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:52,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361146859] [2022-11-18 21:13:52,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361146859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:52,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:52,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:13:52,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819132726] [2022-11-18 21:13:52,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:52,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:13:52,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:52,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:13:52,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:13:52,381 INFO L87 Difference]: Start difference. First operand 6776 states and 9539 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 21:13:53,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:13:53,241 INFO L93 Difference]: Finished difference Result 13590 states and 19486 transitions. [2022-11-18 21:13:53,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:13:53,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 160 [2022-11-18 21:13:53,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:13:53,278 INFO L225 Difference]: With dead ends: 13590 [2022-11-18 21:13:53,278 INFO L226 Difference]: Without dead ends: 6808 [2022-11-18 21:13:53,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:13:53,314 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 0 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4504 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:13:53,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4504 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:13:53,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6808 states. [2022-11-18 21:13:54,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6808 to 6808. [2022-11-18 21:13:54,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6808 states, 4914 states have (on average 1.3247863247863247) internal successors, (6510), 5052 states have internal predecessors, (6510), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1411 states have call predecessors, (1679), 1435 states have call successors, (1679) [2022-11-18 21:13:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6808 states to 6808 states and 9627 transitions. [2022-11-18 21:13:54,040 INFO L78 Accepts]: Start accepts. Automaton has 6808 states and 9627 transitions. Word has length 160 [2022-11-18 21:13:54,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:13:54,041 INFO L495 AbstractCegarLoop]: Abstraction has 6808 states and 9627 transitions. [2022-11-18 21:13:54,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 21:13:54,041 INFO L276 IsEmpty]: Start isEmpty. Operand 6808 states and 9627 transitions. [2022-11-18 21:13:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-18 21:13:54,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:13:54,052 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:13:54,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-18 21:13:54,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:54,275 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:13:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:13:54,275 INFO L85 PathProgramCache]: Analyzing trace with hash -738039550, now seen corresponding path program 1 times [2022-11-18 21:13:54,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:13:54,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438495134] [2022-11-18 21:13:54,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:13:54,279 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:13:54,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:13:54,281 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:13:54,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-18 21:13:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:13:56,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 2952 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 21:13:56,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:13:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 21:13:57,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:13:57,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:13:57,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438495134] [2022-11-18 21:13:57,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438495134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:13:57,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:13:57,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:13:57,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351734910] [2022-11-18 21:13:57,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:13:57,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:13:57,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:13:57,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:13:57,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:13:57,709 INFO L87 Difference]: Start difference. First operand 6808 states and 9627 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 21:14:00,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:14:02,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:14:03,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:14:03,280 INFO L93 Difference]: Finished difference Result 14326 states and 20368 transitions. [2022-11-18 21:14:03,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:14:03,281 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 172 [2022-11-18 21:14:03,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:14:03,314 INFO L225 Difference]: With dead ends: 14326 [2022-11-18 21:14:03,314 INFO L226 Difference]: Without dead ends: 7544 [2022-11-18 21:14:03,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:14:03,332 INFO L413 NwaCegarLoop]: 1202 mSDtfsCounter, 158 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 5852 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-18 21:14:03,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 5852 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 34 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2022-11-18 21:14:03,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7544 states. [2022-11-18 21:14:03,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7544 to 6832. [2022-11-18 21:14:03,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6832 states, 4938 states have (on average 1.3232077764277035) internal successors, (6534), 5068 states have internal predecessors, (6534), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1419 states have call predecessors, (1679), 1435 states have call successors, (1679) [2022-11-18 21:14:04,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 9651 transitions. [2022-11-18 21:14:04,014 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 9651 transitions. Word has length 172 [2022-11-18 21:14:04,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:14:04,014 INFO L495 AbstractCegarLoop]: Abstraction has 6832 states and 9651 transitions. [2022-11-18 21:14:04,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 21:14:04,015 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 9651 transitions. [2022-11-18 21:14:04,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-18 21:14:04,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:14:04,023 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:14:04,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-18 21:14:04,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:04,231 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:14:04,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:14:04,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1206848726, now seen corresponding path program 1 times [2022-11-18 21:14:04,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:14:04,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541792069] [2022-11-18 21:14:04,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:14:04,234 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:04,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:14:04,235 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:14:04,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-18 21:14:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:14:06,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:14:06,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:14:06,829 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-18 21:14:06,829 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:14:06,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:14:06,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541792069] [2022-11-18 21:14:06,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541792069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:14:06,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:14:06,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:14:06,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343151671] [2022-11-18 21:14:06,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:14:06,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:14:06,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:14:06,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:14:06,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:14:06,832 INFO L87 Difference]: Start difference. First operand 6832 states and 9651 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 21:14:09,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 21:14:09,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:14:09,448 INFO L93 Difference]: Finished difference Result 14726 states and 20932 transitions. [2022-11-18 21:14:09,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:14:09,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 178 [2022-11-18 21:14:09,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:14:09,482 INFO L225 Difference]: With dead ends: 14726 [2022-11-18 21:14:09,482 INFO L226 Difference]: Without dead ends: 7920 [2022-11-18 21:14:09,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:14:09,505 INFO L413 NwaCegarLoop]: 1216 mSDtfsCounter, 134 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:14:09,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 2349 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-11-18 21:14:09,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7920 states. [2022-11-18 21:14:10,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7920 to 7008. [2022-11-18 21:14:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7008 states, 5114 states have (on average 1.327727806022683) internal successors, (6790), 5244 states have internal predecessors, (6790), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1419 states have call predecessors, (1679), 1435 states have call successors, (1679) [2022-11-18 21:14:10,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7008 states to 7008 states and 9907 transitions. [2022-11-18 21:14:10,301 INFO L78 Accepts]: Start accepts. Automaton has 7008 states and 9907 transitions. Word has length 178 [2022-11-18 21:14:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:14:10,301 INFO L495 AbstractCegarLoop]: Abstraction has 7008 states and 9907 transitions. [2022-11-18 21:14:10,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 21:14:10,301 INFO L276 IsEmpty]: Start isEmpty. Operand 7008 states and 9907 transitions. [2022-11-18 21:14:10,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-18 21:14:10,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:14:10,308 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:14:10,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-18 21:14:10,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:10,527 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:14:10,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:14:10,527 INFO L85 PathProgramCache]: Analyzing trace with hash 197396526, now seen corresponding path program 1 times [2022-11-18 21:14:10,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:14:10,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927839322] [2022-11-18 21:14:10,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:14:10,530 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:10,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:14:10,531 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:14:10,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-18 21:14:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:14:13,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 3002 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 21:14:13,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:14:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-18 21:14:13,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:14:13,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:14:13,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927839322] [2022-11-18 21:14:13,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927839322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:14:13,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:14:13,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:14:13,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715104946] [2022-11-18 21:14:13,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:14:13,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:14:13,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:14:13,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:14:13,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:14:13,337 INFO L87 Difference]: Start difference. First operand 7008 states and 9907 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-18 21:14:13,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:14:13,945 INFO L93 Difference]: Finished difference Result 14038 states and 19866 transitions. [2022-11-18 21:14:13,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:14:13,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 182 [2022-11-18 21:14:13,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:14:13,973 INFO L225 Difference]: With dead ends: 14038 [2022-11-18 21:14:13,974 INFO L226 Difference]: Without dead ends: 7056 [2022-11-18 21:14:13,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:14:13,991 INFO L413 NwaCegarLoop]: 1127 mSDtfsCounter, 5 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:14:13,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2251 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:14:13,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7056 states. [2022-11-18 21:14:14,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7056 to 7040. [2022-11-18 21:14:14,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 5146 states have (on average 1.3272444617178392) internal successors, (6830), 5276 states have internal predecessors, (6830), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1419 states have call predecessors, (1679), 1435 states have call successors, (1679) [2022-11-18 21:14:14,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 9947 transitions. [2022-11-18 21:14:14,555 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 9947 transitions. Word has length 182 [2022-11-18 21:14:14,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:14:14,556 INFO L495 AbstractCegarLoop]: Abstraction has 7040 states and 9947 transitions. [2022-11-18 21:14:14,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-18 21:14:14,557 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 9947 transitions. [2022-11-18 21:14:14,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 21:14:14,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:14:14,563 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:14:14,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-18 21:14:14,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:14,787 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:14:14,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:14:14,787 INFO L85 PathProgramCache]: Analyzing trace with hash 469072622, now seen corresponding path program 1 times [2022-11-18 21:14:14,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:14:14,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235367276] [2022-11-18 21:14:14,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:14:14,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:14,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:14:14,791 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:14:14,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-18 21:14:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:14:17,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 3005 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 21:14:17,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:14:18,131 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-18 21:14:18,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:14:18,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:14:18,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235367276] [2022-11-18 21:14:18,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235367276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:14:18,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:14:18,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:14:18,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50795709] [2022-11-18 21:14:18,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:14:18,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:14:18,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:14:18,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:14:18,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:14:18,135 INFO L87 Difference]: Start difference. First operand 7040 states and 9947 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-18 21:14:19,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:14:19,747 INFO L93 Difference]: Finished difference Result 15518 states and 22040 transitions. [2022-11-18 21:14:19,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:14:19,747 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 184 [2022-11-18 21:14:19,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:14:19,784 INFO L225 Difference]: With dead ends: 15518 [2022-11-18 21:14:19,784 INFO L226 Difference]: Without dead ends: 8504 [2022-11-18 21:14:19,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 21:14:19,809 INFO L413 NwaCegarLoop]: 1304 mSDtfsCounter, 154 mSDsluCounter, 5045 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 6349 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 21:14:19,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 6349 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 21:14:19,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8504 states. [2022-11-18 21:14:20,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8504 to 7072. [2022-11-18 21:14:20,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7072 states, 5170 states have (on average 1.325725338491296) internal successors, (6854), 5300 states have internal predecessors, (6854), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 463 states have return successors, (1687), 1427 states have call predecessors, (1687), 1435 states have call successors, (1687) [2022-11-18 21:14:20,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7072 states to 7072 states and 9979 transitions. [2022-11-18 21:14:20,613 INFO L78 Accepts]: Start accepts. Automaton has 7072 states and 9979 transitions. Word has length 184 [2022-11-18 21:14:20,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:14:20,614 INFO L495 AbstractCegarLoop]: Abstraction has 7072 states and 9979 transitions. [2022-11-18 21:14:20,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-18 21:14:20,614 INFO L276 IsEmpty]: Start isEmpty. Operand 7072 states and 9979 transitions. [2022-11-18 21:14:20,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-18 21:14:20,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:14:20,622 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:14:20,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-18 21:14:20,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:20,847 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:14:20,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:14:20,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1162855401, now seen corresponding path program 1 times [2022-11-18 21:14:20,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:14:20,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852564287] [2022-11-18 21:14:20,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:14:20,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:20,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:14:20,853 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:14:20,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-18 21:14:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:14:23,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 3007 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 21:14:23,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:14:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-18 21:14:24,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:14:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-18 21:14:24,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:14:24,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852564287] [2022-11-18 21:14:24,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852564287] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:14:24,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 21:14:24,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-11-18 21:14:24,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540591112] [2022-11-18 21:14:24,580 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 21:14:24,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:14:24,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:14:24,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:14:24,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:14:24,581 INFO L87 Difference]: Start difference. First operand 7072 states and 9979 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-18 21:14:25,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:14:25,380 INFO L93 Difference]: Finished difference Result 14198 states and 20058 transitions. [2022-11-18 21:14:25,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:14:25,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 185 [2022-11-18 21:14:25,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:14:25,408 INFO L225 Difference]: With dead ends: 14198 [2022-11-18 21:14:25,409 INFO L226 Difference]: Without dead ends: 7152 [2022-11-18 21:14:25,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:14:25,430 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 26 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3383 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 21:14:25,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3383 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 21:14:25,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7152 states. [2022-11-18 21:14:26,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7152 to 7112. [2022-11-18 21:14:26,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7112 states, 5210 states have (on average 1.324760076775432) internal successors, (6902), 5340 states have internal predecessors, (6902), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 463 states have return successors, (1687), 1427 states have call predecessors, (1687), 1435 states have call successors, (1687) [2022-11-18 21:14:26,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7112 states to 7112 states and 10027 transitions. [2022-11-18 21:14:26,162 INFO L78 Accepts]: Start accepts. Automaton has 7112 states and 10027 transitions. Word has length 185 [2022-11-18 21:14:26,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:14:26,163 INFO L495 AbstractCegarLoop]: Abstraction has 7112 states and 10027 transitions. [2022-11-18 21:14:26,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-18 21:14:26,163 INFO L276 IsEmpty]: Start isEmpty. Operand 7112 states and 10027 transitions. [2022-11-18 21:14:26,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-18 21:14:26,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:14:26,172 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:14:26,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-18 21:14:26,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:26,391 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:14:26,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:14:26,391 INFO L85 PathProgramCache]: Analyzing trace with hash 562115561, now seen corresponding path program 1 times [2022-11-18 21:14:26,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:14:26,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068198560] [2022-11-18 21:14:26,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:14:26,395 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:26,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:14:26,396 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:14:26,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-18 21:14:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:14:29,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 3010 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 21:14:29,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:14:30,243 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-18 21:14:30,243 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:14:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-11-18 21:14:31,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:14:31,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068198560] [2022-11-18 21:14:31,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068198560] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:14:31,965 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 21:14:31,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-11-18 21:14:31,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046316581] [2022-11-18 21:14:31,966 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 21:14:31,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 21:14:31,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:14:31,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 21:14:31,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-18 21:14:31,967 INFO L87 Difference]: Start difference. First operand 7112 states and 10027 transitions. Second operand has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 10 states have internal predecessors, (124), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-18 21:14:35,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:14:35,892 INFO L93 Difference]: Finished difference Result 17102 states and 24330 transitions. [2022-11-18 21:14:35,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 21:14:35,894 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 10 states have internal predecessors, (124), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) Word has length 187 [2022-11-18 21:14:35,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:14:35,924 INFO L225 Difference]: With dead ends: 17102 [2022-11-18 21:14:35,924 INFO L226 Difference]: Without dead ends: 10016 [2022-11-18 21:14:35,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-11-18 21:14:35,944 INFO L413 NwaCegarLoop]: 1490 mSDtfsCounter, 330 mSDsluCounter, 9892 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 11382 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:14:35,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 11382 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-18 21:14:35,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10016 states. [2022-11-18 21:14:36,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10016 to 7104. [2022-11-18 21:14:36,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7104 states, 5202 states have (on average 1.3252595155709344) internal successors, (6894), 5332 states have internal predecessors, (6894), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 463 states have return successors, (1687), 1427 states have call predecessors, (1687), 1435 states have call successors, (1687) [2022-11-18 21:14:36,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7104 states to 7104 states and 10019 transitions. [2022-11-18 21:14:36,670 INFO L78 Accepts]: Start accepts. Automaton has 7104 states and 10019 transitions. Word has length 187 [2022-11-18 21:14:36,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:14:36,671 INFO L495 AbstractCegarLoop]: Abstraction has 7104 states and 10019 transitions. [2022-11-18 21:14:36,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 10 states have internal predecessors, (124), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-18 21:14:36,672 INFO L276 IsEmpty]: Start isEmpty. Operand 7104 states and 10019 transitions. [2022-11-18 21:14:36,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-18 21:14:36,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:14:36,679 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:14:36,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-18 21:14:36,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:36,903 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:14:36,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:14:36,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2093646752, now seen corresponding path program 1 times [2022-11-18 21:14:36,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:14:36,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714845653] [2022-11-18 21:14:36,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:14:36,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:14:36,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:14:36,907 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:14:36,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba0c3f85-bdb8-4a13-910f-4ac79ea4cf75/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process